2331320320455 has 96 divisors (see below), whose sum is σ = 4406783127552. Its totient is φ = 1030935444480.

The previous prime is 2331320320447. The next prime is 2331320320487. The reversal of 2331320320455 is 5540230231332.

It is not a de Polignac number, because 2331320320455 - 2³ = 2331320320447 is a prime.

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 95 ways as a sum of consecutive naturals, for example, 431164362 + ... + 431169768.

It is an arithmetic number, because the mean of its divisors is an integer number (45903990912).

Almost surely, 2^{2331320320455} is an apocalyptic number.

2331320320455 is a deficient number, since it is larger than the sum of its proper divisors (2075462807097).

2331320320455 is a wasteful number, since it uses less digits than its factorization.

2331320320455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9757 (or 9726 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 33.

Adding to 2331320320455 its reverse (5540230231332), we get a palindrome (7871550551787).

The spelling of 2331320320455 in words is "two trillion, three hundred thirty-one billion, three hundred twenty million, three hundred twenty thousand, four hundred fifty-five".