7654321012345678987

This number is a prime.

                                                        765432101 2345678987

7654321012345678987 is the least pandigital prime such that the absolute difference between any two adjacent digits is 1, and the sum of all the differences between adjacent digits is 0. Found by J. K. Andersen, Jon Wharf, and Farideh Firoozbakht. [Rivera]