13120615873 has 4 divisors (see below), whose sum is σ = 13140895680. Its totient is φ = 13100336068.

The previous prime is 13120615789. The next prime is 13120615883. The reversal of 13120615873 is 37851602131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13120615873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13120615883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10138933 + ... + 10140226.

It is an arithmetic number, because the mean of its divisors is an integer number (3285223920).

Almost surely, 2^13120615873 is an apocalyptic number.

It is an amenable number.

13120615873 is a deficient number, since it is larger than the sum of its proper divisors (20279807).

13120615873 is an equidigital number, since it uses as much as digits as its factorization.

13120615873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20279806.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 13120615873 in words is "thirteen billion, one hundred twenty million, six hundred fifteen thousand, eight hundred seventy-three".