1003
This number is a composite.
The smallest 4-digit brilliant number (1003 = 17 × 59) whose prime factors are concatenated in some order, is also a brilliant number, i.e., 5917 = 61 x 97. [Loungrides]
The smallest 4-digit "April
Fools prime" whose the reversal is prime. [Loungrides]
(There are 3 curios for this number that have not yet been approved by an editor.)
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