13231122994 has 4 divisors (see below), whose sum is σ = 19846684494. Its totient is φ = 6615561496.

The previous prime is 13231122977. The next prime is 13231123049. The reversal of 13231122994 is 49922113231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12324330225 + 906792769 = 111015^2 + 30113^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3307780747 + ... + 3307780750.

Almost surely, 2^13231122994 is an apocalyptic number.

13231122994 is a deficient number, since it is larger than the sum of its proper divisors (6615561500).

13231122994 is an equidigital number, since it uses as much as digits as its factorization.

13231122994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6615561499.

The product of its digits is 23328, while the sum is 37.

The spelling of 13231122994 in words is "thirteen billion, two hundred thirty-one million, one hundred twenty-two thousand, nine hundred ninety-four".