13312304040440 has 16 divisors (see below), whose sum is σ = 29952684091080. Its totient is φ = 5324921616160.

The previous prime is 13312304040377. The next prime is 13312304040493. The reversal of 13312304040440 is 4404040321331.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166403800466 + ... + 166403800545.

Almost surely, 2^{13312304040440} is an apocalyptic number.

13312304040440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13312304040440 is an abundant number, since it is smaller than the sum of its proper divisors (16640380050640).

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

13312304040440 is a wasteful number, since it uses less digits than its factorization.

13312304040440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332807601022 (or 332807601018 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 13312304040440 its reverse (4404040321331), we get a palindrome (17716344361771).

The spelling of 13312304040440 in words is "thirteen trillion, three hundred twelve billion, three hundred four million, forty thousand, four hundred forty".