34567876543

This number is a prime.

                                                                3 4567876543

The largest of four palindromic primes composed of distinct consecutive digits listed first in ascending order and then in descending order. Omar E. Pol calls these the Giza primes (after their similarity to the pyramids at Giza, Egypt).

          8 

        7 . 7  

      6 . . . 6  

    5 . . . . . 5  

  4 . . . . . . . 4  

3 . . . . . . . . . 3