13231313132 has 24 divisors (see below), whose sum is σ = 24216143616. Its totient is φ = 6313715408.

The previous prime is 13231313111. The next prime is 13231313203. The reversal of 13231313132 is 23131313231.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 13231313098 and 13231313107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121568 + ... + 203079.

It is an arithmetic number, because the mean of its divisors is an integer number (1009005984).

Almost surely, 2^13231313132 is an apocalyptic number.

It is an amenable number.

13231313132 is a deficient number, since it is larger than the sum of its proper divisors (10984830484).

13231313132 is a wasteful number, since it uses less digits than its factorization.

13231313132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325117 (or 325115 counting only the distinct ones).

The product of its digits is 972, while the sum is 23.

Adding to 13231313132 its reverse (23131313231), we get a palindrome (36362626363).

Subtracting 13231313132 from its reverse (23131313231), we obtain a palindrome (9900000099).

The spelling of 13231313132 in words is "thirteen billion, two hundred thirty-one million, three hundred thirteen thousand, one hundred thirty-two".