13044431252 has 12 divisors (see below), whose sum is σ = 23444721300. Its totient is φ = 6345939456.

The previous prime is 13044431237. The next prime is 13044431273. The reversal of 13044431252 is 25213444031.

It can be written as a sum of positive squares in 2 ways, for example, as 12160796176 + 883635076 = 110276^2 + 29726^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44068877 + ... + 44069172.

It is an arithmetic number, because the mean of its divisors is an integer number (1953726775).

Almost surely, 2^13044431252 is an apocalyptic number.

It is an amenable number.

13044431252 is a deficient number, since it is larger than the sum of its proper divisors (10400290048).

13044431252 is a wasteful number, since it uses less digits than its factorization.

13044431252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88138090 (or 88138088 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 13044431252 its reverse (25213444031), we get a palindrome (38257875283).

The spelling of 13044431252 in words is "thirteen billion, forty-four million, four hundred thirty-one thousand, two hundred fifty-two".