What is he gave me his number is he interested?

As an AI language model, I cannot determine the intentions of a person just by knowing that he gave his number. However, generally speaking, giving someone your number can be a sign of interest if the person is interested in continuing to communicate and spend time with the recipient of the number. But it could also be given for other reasons such as exchanging information, wanting to make a new friend, or networking. It's important to have more context and observe the person's behavior to better understand their intentions.