13000312232 has 32 divisors (see below), whose sum is σ = 24489153480. Its totient is φ = 6469943040.

The previous prime is 13000312229. The next prime is 13000312261. The reversal of 13000312232 is 23221300031.

It can be written as a sum of positive squares in 4 ways, for example, as 12023999716 + 976312516 = 109654^2 + 31246^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13000312232.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1610318 + ... + 1618370.

Almost surely, 2^13000312232 is an apocalyptic number.

It is an amenable number.

13000312232 is a deficient number, since it is larger than the sum of its proper divisors (11488841248).

13000312232 is a wasteful number, since it uses less digits than its factorization.

13000312232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8973 (or 8969 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 13000312232 its reverse (23221300031), we get a palindrome (36221612263).

The spelling of 13000312232 in words is "thirteen billion, three hundred twelve thousand, two hundred thirty-two".