231233020320 has 48 divisors (see below), whose sum is σ = 728384015520. Its totient is φ = 61662138624.

The previous prime is 231233020289. The next prime is 231233020327. The reversal of 231233020320 is 23020332132.

231233020320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×231233020320³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (231233020327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240867250 + ... + 240868209.

It is an arithmetic number, because the mean of its divisors is an integer number (15174666990).

Almost surely, 2^231233020320 is an apocalyptic number.

231233020320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231233020320 is an abundant number, since it is smaller than the sum of its proper divisors (497150995200).

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

231233020320 is a wasteful number, since it uses less digits than its factorization.

231233020320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481735477 (or 481735469 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 231233020320 its reverse (23020332132), we get a palindrome (254253352452).

The spelling of 231233020320 in words is "two hundred thirty-one billion, two hundred thirty-three million, twenty thousand, three hundred twenty".