This number is a prime.
The smallest odd prime of the form (2*10^(5n) - 10^(4n) + 2*10^(3n) + 10^(2n) + 10^n + 1)/3. Its cube lacks zeros. [Honaker]
The smallest odd prime of the form (2*10^(5n) - 10^(4n) + 2*10^(3n) + 10^(2n) + 10^n + 1)/3. Its cube lacks zeros. [Honaker]