http://stdkmd.com/nrr/repunit/phin10.cgi?p=1912#N191188
http://factordb.com/index.php?id=1100000000448678147

PFGW Version 3.7.9.64BIT.20141125.Win_Dev [GWNUM 28.6]
Primality testing Phi(191188,10)/191189 [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)
Phi(191188,10)/191189 is Fermat and Lucas PRP! (2138.7429s+0.0453s)

To be completed...