This number is a prime.
20589 1132094648 9999999999 9999999999 9999999993
(2 x 3 x 5)2 x 3 x 5 - 7 is prime. Notice the four prime digits. [Gudipati]
(2 x 3 x 5)2 x 3 x 5 - 7 is prime. Notice the four prime digits. [Gudipati]