231232211130120 has 128 divisors (see below), whose sum is σ = 734506959312000. Its totient is φ = 58034384285696.

The previous prime is 231232211130077. The next prime is 231232211130139. The reversal of 231232211130120 is 21031112232132.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 481193731 + ... + 481674029.

It is an arithmetic number, because the mean of its divisors is an integer number (5738335619625).

Almost surely, 2^{231232211130120} is an apocalyptic number.

231232211130120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231232211130120 is an abundant number, since it is smaller than the sum of its proper divisors (503274748181880).

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

231232211130120 is a wasteful number, since it uses less digits than its factorization.

231232211130120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716327 (or 716323 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 231232211130120 its reverse (21031112232132), we get a palindrome (252263323362252).

The spelling of 231232211130120 in words is "two hundred thirty-one trillion, two hundred thirty-two billion, two hundred eleven million, one hundred thirty thousand, one hundred twenty".