13312398409 has 12 divisors (see below), whose sum is σ = 13802158656. Its totient is φ = 12839477168.

The previous prime is 13312398373. The next prime is 13312398433. The reversal of 13312398409 is 90489321331.

It is a de Polignac number, because none of the positive numbers 2^k-13312398409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13312398109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 818652 + ... + 834754.

It is an arithmetic number, because the mean of its divisors is an integer number (1150179888).

Almost surely, 2^13312398409 is an apocalyptic number.

It is an amenable number.

13312398409 is a deficient number, since it is larger than the sum of its proper divisors (489760247).

13312398409 is an equidigital number, since it uses as much as digits as its factorization.

13312398409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17144 (or 17115 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 13312398409 in words is "thirteen billion, three hundred twelve million, three hundred ninety-eight thousand, four hundred nine".