13122312232 has 16 divisors (see below), whose sum is σ = 24614653140. Its totient is φ = 6558404736.

The previous prime is 13122312227. The next prime is 13122312233. The reversal of 13122312232 is 23221322131.

It can be written as a sum of positive squares in 2 ways, for example, as 11649748356 + 1472563876 = 107934^2 + 38374^2 .

It is not an unprimeable number, because it can be changed into a prime (13122312233) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 323583 + ... + 361870.

Almost surely, 2^13122312232 is an apocalyptic number.

It is an amenable number.

13122312232 is a deficient number, since it is larger than the sum of its proper divisors (11492340908).

13122312232 is a wasteful number, since it uses less digits than its factorization.

13122312232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687852 (or 687848 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

Adding to 13122312232 its reverse (23221322131), we get a palindrome (36343634363).

The spelling of 13122312232 in words is "thirteen billion, one hundred twenty-two million, three hundred twelve thousand, two hundred thirty-two".