11111...11111 (47-digits)
This number is a prime.
1111111 1111111111 1111128511 1111111111 1111111111
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A dihedral emirp of prime length and prime sum of digits. [Patterson]
Submitted: 2003-11-21 13:40:11; Last Modified: 2008-02-04 03:21:13.
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