13231323124 has 12 divisors (see below), whose sum is σ = 23156508004. Its totient is φ = 6615177984.

The previous prime is 13231323107. The next prime is 13231323179. The reversal of 13231323124 is 42132313231.

It can be written as a sum of positive squares in 2 ways, for example, as 1179235600 + 12052087524 = 34340^2 + 109782^2 .

It is a super-2 number, since 2×13231323124² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55389 + ... + 171844.

Almost surely, 2^13231323124 is an apocalyptic number.

It is an amenable number.

13231323124 is a deficient number, since it is larger than the sum of its proper divisors (9925184880).

13231323124 is a wasteful number, since it uses less digits than its factorization.

13231323124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241794 (or 241792 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

Adding to 13231323124 its reverse (42132313231), we get a palindrome (55363636355).

The spelling of 13231323124 in words is "thirteen billion, two hundred thirty-one million, three hundred twenty-three thousand, one hundred twenty-four".