13131022232 has 8 divisors (see below), whose sum is σ = 24620666700. Its totient is φ = 6565511112.

The previous prime is 13131022231. The next prime is 13131022237. The reversal of 13131022232 is 23222013131.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131022231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820688882 + ... + 820688897.

Almost surely, 2^13131022232 is an apocalyptic number.

It is an amenable number.

13131022232 is a deficient number, since it is larger than the sum of its proper divisors (11489644468).

13131022232 is a wasteful number, since it uses less digits than its factorization.

13131022232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641377785 (or 1641377781 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13131022232 its reverse (23222013131), we get a palindrome (36353035363).

The spelling of 13131022232 in words is "thirteen billion, one hundred thirty-one million, twenty-two thousand, two hundred thirty-two".