The proton is a subatomic particle present inside the nucleus - and it’s responsible for the overall positive charge that the nucleus possesses.
It has a charge of +1.6 x 10-19 C. Mind you, this number is far from insignificant! It’s actually the elementary charge e, which is the smallest amount of isolated charge that anything in this universe can possess.
As for mass, the proton weighs a mighty 1.67 x 10-27 kg. (You may be rolling your eyes at me using the word ‘mighty’, but it is so when you compare it to its counterpart - the electron - which is 1840 times lighter. Talk about a tiny, tiny universe!)