13231123232 has 12 divisors (see below), whose sum is σ = 26048773926. Its totient is φ = 6615561600.

The previous prime is 13231123231. The next prime is 13231123253. The reversal of 13231123232 is 23232113231.

It can be written as a sum of positive squares in only one way, i.e., 8492728336 + 4738394896 = 92156^2 + 68836^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13231123198 and 13231123207.

It is not an unprimeable number, because it can be changed into a prime (13231123231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206736269 + ... + 206736332.

Almost surely, 2^13231123232 is an apocalyptic number.

It is an amenable number.

13231123232 is a deficient number, since it is larger than the sum of its proper divisors (12817650694).

13231123232 is an equidigital number, since it uses as much as digits as its factorization.

13231123232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413472611 (or 413472603 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

Adding to 13231123232 its reverse (23232113231), we get a palindrome (36463236463).

The spelling of 13231123232 in words is "thirteen billion, two hundred thirty-one million, one hundred twenty-three thousand, two hundred thirty-two".