This number is likely the second-largest element in the minimal set for the base b representations of the primes which are > b for base b = 16, there are 2346 known elements in the minimal set for the base b representations of the primes which are > b for base b = 16, 2343 of them are proven primes, see https://docs.google.com/document/d/e/2PACX-1vQct6Hx-IkJd5-iIuDuOKkKdw2teGmmHW-P75MPaxqBXB37u0odFBml5rx0PoLa0odTyuW67N_vn96J/pub for more information.

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