231210112320 has 672 divisors, whose sum is σ = 942759567360. Its totient is φ = 51383808000.

The previous prime is 231210112279. The next prime is 231210112391. The reversal of 231210112320 is 23211012132.

231210112320 is a `hidden beast` number, since 23 + 1 + 210 + 112 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 231210112293 and 231210112302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18653325 + ... + 18665715.

Almost surely, 2^231210112320 is an apocalyptic number.

231210112320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231210112320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (471379783680).

231210112320 is an abundant number, since it is smaller than the sum of its proper divisors (711549455040).

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

231210112320 is a wasteful number, since it uses less digits than its factorization.

231210112320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12475 (or 12462 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 231210112320 its reverse (23211012132), we get a palindrome (254421124452).

The spelling of 231210112320 in words is "two hundred thirty-one billion, two hundred ten million, one hundred twelve thousand, three hundred twenty".