11905331 has 2 divisors, whose sum is σ = 11905332. Its totient is φ = 11905330.

The previous prime is 11905319. The next prime is 11905349. The reversal of 11905331 is 13350911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11905331 - 2¹⁰ = 11904307 is a prime.

It is a super-2 number, since 2×11905331² = 283473812439122, which contains 22 as substring.

It is a Sophie Germain prime.

It is equal to p₇₈₂₂₄₀ and since 11905331 and 782240 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 11905297 and 11905306.

It is not a weakly prime, because it can be changed into another prime (11904331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5952665 + 5952666.

It is an arithmetic number, because the mean of its divisors is an integer number (5952666).

Almost surely, 2^11905331 is an apocalyptic number.

11905331 is a deficient number, since it is larger than the sum of its proper divisors (1).

11905331 is an equidigital number, since it uses as much as digits as its factorization.

11905331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 405, while the sum is 23.

The square root of 11905331 is about 3450.4102654612. The cubic root of 11905331 is about 228.3392085914.

The spelling of 11905331 in words is "eleven million, nine hundred five thousand, three hundred thirty-one".