The Bible talks about how the devils believe and tremble. "You believe that God is one; you do well. Even the demons believe—and shudder!" - James 2:19.
They believe Jesus exists, is God, was resurrected. But they refuse to accept him as their Lord (which involves submitting yourself to him) and don't believe him to be their Saviour, nor do they obey his commands outside of what he forces them to obey.