231761412120 has 64 divisors (see below), whose sum is σ = 794610558720. Its totient is φ = 52974036864.

The previous prime is 231761412109. The next prime is 231761412137. The reversal of 231761412120 is 21214167132.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137952382 + ... + 137954061.

It is an arithmetic number, because the mean of its divisors is an integer number (12415789980).

Almost surely, 2^231761412120 is an apocalyptic number.

231761412120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231761412120 is an abundant number, since it is smaller than the sum of its proper divisors (562849146600).

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

231761412120 is a wasteful number, since it uses less digits than its factorization.

231761412120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275906464 (or 275906460 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

Adding to 231761412120 its reverse (21214167132), we get a palindrome (252975579252).

The spelling of 231761412120 in words is "two hundred thirty-one billion, seven hundred sixty-one million, four hundred twelve thousand, one hundred twenty".