11380931 has 2 divisors, whose sum is σ = 11380932. Its totient is φ = 11380930.

The previous prime is 11380927. The next prime is 11380933. The reversal of 11380931 is 13908311.

11380931 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 11380931 - 2² = 11380927 is a prime.

It is a super-2 number, since 2×11380931² = 259051180853522, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 11380933, it forms a pair of twin primes.

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 11380931.

It is not a weakly prime, because it can be changed into another prime (11380933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5690465 + 5690466.

It is an arithmetic number, because the mean of its divisors is an integer number (5690466).

Almost surely, 2^11380931 is an apocalyptic number.

11380931 is a deficient number, since it is larger than the sum of its proper divisors (1).

11380931 is an equidigital number, since it uses as much as digits as its factorization.

11380931 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 11380931 is about 3373.5635461630. The cubic root of 11380931 is about 224.9361530777.

The spelling of 11380931 in words is "eleven million, three hundred eighty thousand, nine hundred thirty-one".