Relationships with big age difference?

A man twice my age is pursuing me. At first I noticed he would kind of flirt with me at work but I didn't think much of it. Then one day he comes to my office and passes me a piece of paper with his number. I have never dated a man so much older, I don't know if it could work. He has kids my age. It just kind of trips me out to think about. I don't know what he could see with me.