Former President Donald Trump and New York Attorney General Letitia James, in separate media appearances, addressed the ruling Friday evening, trading barbs while reacting to the judgment.

Speaking from his Mar-a-Lago estate in Florida, Trump said he had to pay a fine for "having built a perfect company." Accusing both James and Judge Arthur Engoron of being politically motivated, Trump denied committing any fraud and said he plans to appeal.

Meanwhile, in New York, James lauded the ruling as a victory for all Americans and the principles of equal justice under the law -- saying "former presidents are no exception."

"The scale and scope of Donald Trump's fraud is staggering -- and so, too, is his ego and his belief that the rules don't apply to him," she said.

James also heralded Judge Engoron's penalties as effective remedies to "ensure this fraud cannot continue."

Based on Friday's decision, former President Trump and his co-defendants will likely owe $463.9 million based on their initial fine and the prejudgment interest imposed by the court, according to a representative for the New York attorney general.

Trump himself will likely owe $453.5 million, between his $354.86 million fine and $98.6 million in interest.

The amount of interest owed by the defendants is set to increase every day they do not pay the fines.

New York Attorney General Letitia James, whose office brought the civil fraud case against Donald Trump, described the ruling as a "tremendous victory for this state, this nation, and for everyone who believes that we all must play by the same rules -- even former presidents."

“When powerful people cheat to get better loans, it comes at the expense of honest and hardworking people," James said in a statement. "Everyday Americans cannot lie to a bank to get a mortgage to buy a home, and if they did, our government would throw the book at them. There simply cannot be different rules for different people."

The former president is "finally facing accountability for his lying, cheating, and staggering fraud," she said.

In addition to the fines imposed on Donald Trump and his co-defendants, the judge's decision leaves the Trump Organization in a constrained position to continue operating their New York-based businesses.

While Judge Engoron backtracked on his September summary judgment ruling -- vacating the part of his order that canceled their business certificates -- Donald Trump and his sons are temporarily unable to lead their namesake company. Trump faces a three-year ban on serving as the leader of a New York company, and his sons face two-year bans.

An independent monitor will continue to oversee the company's finances for at least three years, and the company needs to install a director of compliance.

Regarding the combined $364 million owed by the defendants, experts who ABC News spoke with believe it is unlikely any of them foot the bill immediately; instead, they can cover the fine with a bond while they appeal.

Judge Engoron said he is considering holding former President Trump in contempt of court -- and even raised the possibility of imprisonment -- following what Engoron described as a "blatant violation of the gag order" imposed earlier this month during the trial.

Engoron imposed a limited gag order on Oct. 3 after Trump made a false social media post about the judge's clerk. While Trump immediately removed the post from Truth Social, Trump's campaign website appeared to still include the social media post until last night.

"Despite this clear order, last night I learned that the subject offending post was never removed from [the Trump's campaign website], in fact had been on that website for the past 17 days," Engoron said.

The judge said he was considering holding Trump in contempt of court, fining him, or "possibly imprisoning him."

"Incendiary untruths can, and in some cases already had, lead to serious physical harm," Engoron said.

Trump's lawyer Chris Kise told Engoron that the website including the post was an "inadvertent" mistake and that Trump has tried to comply with the order since it was imposed.

"The Truth Social post was taken down when President Trump represented it to the court," Kise said.

Addressing why the post remained on Trump's campaign website, Kise blamed Trump's "very large [campaign] operation."

"This unfortunately is a part of the process that is built into the campaign structure," Kise said.

Engoron, who did not immediately resolve the issue, said, "I will take this under advisement, but I want to make clear that Donald Trump is still responsible for the large machine, even if it is a large machine."