10000...00000 (500-digits)

This number is a composite.

Call this number N and you get with N+58195471283341+d the smallest 500-digit prime quintuplet to pattern d=0,2,6,8,12. For N+69672492141807+d you get the 2nd smallest 500-digit prime quintuplet to pattern d=0,4,6,10,12. [Luhn]