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The only prime in the following alphametic:
UK USA + USSR  ABOMB.[Madachy] The largest prime containing only odd digits, in decreasing order. [Hasler] The largest prime formed from the concatenation of onedigit composite number, onedigit prime number, and onedigit number that is neither prime nor composite. [Wesolowski] The smallest emirp p which taken together with the pth prime, also an emirp (7649), forms yet another emirp (9717649). [Beedassy]
(There are 2 curios for this number that have not yet been approved by an editor.)
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