11803931 has 2 divisors, whose sum is σ = 11803932. Its totient is φ = 11803930.

The previous prime is 11803907. The next prime is 11803949. The reversal of 11803931 is 13930811.

11803931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11803931 - 2²² = 7609627 is a prime.

It is a super-2 number, since 2×11803931² = 278665574105522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11803931.

It is not a weakly prime, because it can be changed into another prime (11803951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5901965 + 5901966.

It is an arithmetic number, because the mean of its divisors is an integer number (5901966).

Almost surely, 2^11803931 is an apocalyptic number.

11803931 is a deficient number, since it is larger than the sum of its proper divisors (1).

11803931 is an equidigital number, since it uses as much as digits as its factorization.

11803931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 11803931 is about 3435.6849389896. The cubic root of 11803931 is about 227.6890896624.

The spelling of 11803931 in words is "eleven million, eight hundred three thousand, nine hundred thirty-one".