Exactly how much time has passed between 11 and 13? I watched Jodie Whittaker's Doctor, but I must've missed where she mentioned her age. Last I remember, the Doctor said they were 900 years old.
Near the end of 11 I think he says he's over 1000. And then he spends who knows how long chilling on some planet growing old since he thinks he's gonna die.
And then 12 punches a wall for a few billion years but for reasons it only really counts for less than a year probably. Then he spends a while as a professor, probably over 100. So yeah I guess across all that it could reasonably be 1000 years making jodie 2000 years old.