13231031332 has 12 divisors (see below), whose sum is σ = 23309703900. Its totient is φ = 6571115936.

The previous prime is 13231031287. The next prime is 13231031339. The reversal of 13231031332 is 23313013231.

It can be written as a sum of positive squares in 2 ways, for example, as 2253021156 + 10978010176 = 47466^2 + 104776^2 .

It is not an unprimeable number, because it can be changed into a prime (13231031339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11099263 + ... + 11100454.

It is an arithmetic number, because the mean of its divisors is an integer number (1942475325).

Almost surely, 2^13231031332 is an apocalyptic number.

It is an amenable number.

13231031332 is a deficient number, since it is larger than the sum of its proper divisors (10078672568).

13231031332 is a wasteful number, since it uses less digits than its factorization.

13231031332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22199870 (or 22199868 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 13231031332 its reverse (23313013231), we get a palindrome (36544044563).

The spelling of 13231031332 in words is "thirteen billion, two hundred thirty-one million, thirty-one thousand, three hundred thirty-two".