11231908913 has 2 divisors, whose sum is σ = 11231908914. Its totient is φ = 11231908912.

The previous prime is 11231908907. The next prime is 11231908927. The reversal of 11231908913 is 31980913211.

11231908913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8090642704 + 3141266209 = 89948^2 + 56047^2 .

It is a cyclic number.

It is not a de Polignac number, because 11231908913 - 2⁸ = 11231908657 is a prime.

It is not a weakly prime, because it can be changed into another prime (11231908903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5615954456 + 5615954457.

It is an arithmetic number, because the mean of its divisors is an integer number (5615954457).

Almost surely, 2^11231908913 is an apocalyptic number.

It is an amenable number.

11231908913 is a deficient number, since it is larger than the sum of its proper divisors (1).

11231908913 is an equidigital number, since it uses as much as digits as its factorization.

11231908913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 38.

The spelling of 11231908913 in words is "eleven billion, two hundred thirty-one million, nine hundred eight thousand, nine hundred thirteen".