13131443313232 has 40 divisors (see below), whose sum is σ = 25990521837192. Its totient is φ = 6425304614400.

The previous prime is 13131443313229. The next prime is 13131443313239. The reversal of 13131443313232 is 23231334413131.

It can be written as a sum of positive squares in 4 ways, for example, as 2633817393216 + 10497625920016 = 1622904^2 + 3240004^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131443313239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33955819 + ... + 34340362.

Almost surely, 2^{13131443313232} is an apocalyptic number.

It is an amenable number.

13131443313232 is a deficient number, since it is larger than the sum of its proper divisors (12859078523960).

13131443313232 is a wasteful number, since it uses less digits than its factorization.

13131443313232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68296447 (or 68296441 counting only the distinct ones).

The product of its digits is 46656, while the sum is 34.

Adding to 13131443313232 its reverse (23231334413131), we get a palindrome (36362777726363).

The spelling of 13131443313232 in words is "thirteen trillion, one hundred thirty-one billion, four hundred forty-three million, three hundred thirteen thousand, two hundred thirty-two".