13312321134320 has 40 divisors (see below), whose sum is σ = 33332004073536. Its totient is φ = 4915318572288.

The previous prime is 13312321134289. The next prime is 13312321134347. The reversal of 13312321134320 is 2343112321331.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6400153352 + ... + 6400155431.

Almost surely, 2^{13312321134320} is an apocalyptic number.

13312321134320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13312321134320 is an abundant number, since it is smaller than the sum of its proper divisors (20019682939216).

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

13312321134320 is a wasteful number, since it uses less digits than its factorization.

13312321134320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12800308809 (or 12800308803 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 13312321134320 its reverse (2343112321331), we get a palindrome (15655433455651).

The spelling of 13312321134320 in words is "thirteen trillion, three hundred twelve billion, three hundred twenty-one million, one hundred thirty-four thousand, three hundred twenty".