10111001

This number is a prime.

+ An anti-Yarborough prime (also an emirp) that can represent the dates in the format DDMMYYYY: {10:11:1001} ->10 Nov 1001; MMDDYYYY: {10:11:1001} -> Oct 11, 1001; YYYYMMDD: {1011:10:01} -> 1011, Oct 01. [Bajpai]

+ The smallest prime "byte" that is composite in decimal. [Undis]

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