232123031220 has 24 divisors (see below), whose sum is σ = 649944487584. Its totient is φ = 61899474976.

The previous prime is 232123031219. The next prime is 232123031249. The reversal of 232123031220 is 22130321232.

It is a happy number.

It is a super-2 number, since 2×232123031220² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1934358534 + ... + 1934358653.

It is an arithmetic number, because the mean of its divisors is an integer number (27081020316).

Almost surely, 2^232123031220 is an apocalyptic number.

232123031220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232123031220 is an abundant number, since it is smaller than the sum of its proper divisors (417821456364).

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

232123031220 is a wasteful number, since it uses less digits than its factorization.

232123031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3868717199 (or 3868717197 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 232123031220 its reverse (22130321232), we get a palindrome (254253352452).

The spelling of 232123031220 in words is "two hundred thirty-two billion, one hundred twenty-three million, thirty-one thousand, two hundred twenty".