231033022320 has 40 divisors (see below), whose sum is σ = 716202369936. Its totient is φ = 61608805888.

The previous prime is 231033022291. The next prime is 231033022321. The reversal of 231033022320 is 23220330132.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231033022321) 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, 481318557 + ... + 481319036.

Almost surely, 2^231033022320 is an apocalyptic number.

231033022320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231033022320 is an abundant number, since it is smaller than the sum of its proper divisors (485169347616).

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

231033022320 is a wasteful number, since it uses less digits than its factorization.

231033022320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962637609 (or 962637603 counting only the distinct ones).

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

Adding to 231033022320 its reverse (23220330132), we get a palindrome (254253352452).

The spelling of 231033022320 in words is "two hundred thirty-one billion, thirty-three million, twenty-two thousand, three hundred twenty".