11902931 has 2 divisors, whose sum is σ = 11902932. Its totient is φ = 11902930.

The previous prime is 11902921. The next prime is 11902973. The reversal of 11902931 is 13920911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11902931 - 2⁶ = 11902867 is a prime.

It is a super-2 number, since 2×11902931² = 283359532781522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11902931.

It is not a weakly prime, because it can be changed into another prime (11902921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5951465 + 5951466.

It is an arithmetic number, because the mean of its divisors is an integer number (5951466).

Almost surely, 2^11902931 is an apocalyptic number.

11902931 is a deficient number, since it is larger than the sum of its proper divisors (1).

11902931 is an equidigital number, since it uses as much as digits as its factorization.

11902931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 11902931 is about 3450.0624632027. The cubic root of 11902931 is about 228.3238638989.

The spelling of 11902931 in words is "eleven million, nine hundred two thousand, nine hundred thirty-one".