231301231320 has 64 divisors (see below), whose sum is σ = 694390475520. Its totient is φ = 61637058944.

The previous prime is 231301231253. The next prime is 231301231321. The reversal of 231301231320 is 23132103132.

231301231320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×231301231320² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231301231321) by changing a digit.

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, 504132 + ... + 846611.

It is an arithmetic number, because the mean of its divisors is an integer number (10849851180).

Almost surely, 2^231301231320 is an apocalyptic number.

231301231320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231301231320 is an abundant number, since it is smaller than the sum of its proper divisors (463089244200).

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

231301231320 is a wasteful number, since it uses less digits than its factorization.

231301231320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352184 (or 1352180 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 231301231320 its reverse (23132103132), we get a palindrome (254433334452).

The spelling of 231301231320 in words is "two hundred thirty-one billion, three hundred one million, two hundred thirty-one thousand, three hundred twenty".