11110...01111 (25-digits)
This number is a prime.
11110 1110110101 1011101111
The smallest palindromic prime with middle digit 1 that is
formed from the reflected successive concatenation of a
decreasing number of repeated 1's and 0's. [Wesolowski]
(There are 2 curios for this number that have not yet been approved by an editor.)
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