11513875939 has 2 divisors, whose sum is σ = 11513875940. Its totient is φ = 11513875938.

The previous prime is 11513875931. The next prime is 11513875993. The reversal of 11513875939 is 93957831511.

Together with next prime (11513875993) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11513875939 - 2³ = 11513875931 is a prime.

It is not a weakly prime, because it can be changed into another prime (11513875931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5756937969 + 5756937970.

It is an arithmetic number, because the mean of its divisors is an integer number (5756937970).

Almost surely, 2^11513875939 is an apocalyptic number.

11513875939 is a deficient number, since it is larger than the sum of its proper divisors (1).

11513875939 is an equidigital number, since it uses as much as digits as its factorization.

11513875939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1020600, while the sum is 52.

The spelling of 11513875939 in words is "eleven billion, five hundred thirteen million, eight hundred seventy-five thousand, nine hundred thirty-nine".