Palindrome.

PFGW Version 1.2.0 for Windows [FFT v23.8]

Primality testing (9*10^(8501+7)+8817188)*10^(8501+1)+9
[N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3
Running N+1 test using discriminant 7, base 1+sqrt(7)
Running N+1 test using discriminant 7, base 2+sqrt(7)
Running N+1 test using discriminant 7, base 9+sqrt(7)
(9*10^(8501+7)+8817188)*10^(8501+1)+9 is Fermat and Lucas PRP!

To be completed...