Strobogrammatic PRP.

PFGW Version 20041001.Win_Stable (v1.2 RC1b) [FFT v23.8]

Primality testing (6*10^(5623+9)+668181899)*10^(5623+1)+9
[N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3
Running N-1 test using base 17
Running N+1 test using discriminant 23, base 8+sqrt(23)
(6*10^(5623+9)+668181899)*10^(5623+1)+9 is Fermat and Lucas PRP!

To be completed...