13040331444032 has 56 divisors (see below), whose sum is σ = 26746901466720. Its totient is φ = 6304578024960.

The previous prime is 13040331444031. The next prime is 13040331444067. The reversal of 13040331444032 is 23044413304031.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 13040331444032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13040331444031) 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, 28076858 + ... + 28537529.

Almost surely, 2^{13040331444032} is an apocalyptic number.

It is an amenable number.

13040331444032 is an abundant number, since it is smaller than the sum of its proper divisors (13706570022688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13040331444032 is an equidigital number, since it uses as much as digits as its factorization.

13040331444032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56614519 (or 56614509 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 13040331444032 its reverse (23044413304031), we get a palindrome (36084744748063).

The spelling of 13040331444032 in words is "thirteen trillion, forty billion, three hundred thirty-one million, four hundred forty-four thousand, thirty-two".