231313332320 has 96 divisors (see below), whose sum is σ = 630073297728. Its totient is φ = 78605549568.

The previous prime is 231313332293. The next prime is 231313332337. The reversal of 231313332320 is 23233313132.

It is a happy number.

231313332320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 231313332320.

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 15 ways as a sum of consecutive naturals, for example, 787289 + ... + 1040408.

It is an arithmetic number, because the mean of its divisors is an integer number (6563263518).

Almost surely, 2^231313332320 is an apocalyptic number.

231313332320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231313332320 is an abundant number, since it is smaller than the sum of its proper divisors (398759965408).

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

231313332320 is a wasteful number, since it uses less digits than its factorization.

231313332320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827832 (or 1827824 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 231313332320 its reverse (23233313132), we get a palindrome (254546645452).

The spelling of 231313332320 in words is "two hundred thirty-one billion, three hundred thirteen million, three hundred thirty-two thousand, three hundred twenty".