Authorities are investigating whether a mysterious blaze inside the palatial Manhattan apartment of Chinese billionaire and accused fraudster Guo Wengui was sparked remotely, sources told The Post Thursday.

Guo, a controversial figure whose real name is Ho Wan Kwok, also had the 18th-floor luxury apartment overlooking Central Park wired for sound to record his visitors, the sources said.

“It was absolutely wired,” the source said of Guo’s luxury apartment at the Sherry-Netherland Hotel on Fifth Avenue. “Everything that happened in there, especially in the solarium, was recorded. Every word.

“The fire was probably not started by a person in the space. It was started somehow remotely, and the whole apartment was wired.”