231031202100000 has 144 divisors (see below), whose sum is σ = 758022616322496. Its totient is φ = 61608320480000.

The previous prime is 231031202099987. The next prime is 231031202100007. The reversal of 231031202100000 is 1202130132.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (231031202100007) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 384752004 + ... + 385352003.

It is an arithmetic number, because the mean of its divisors is an integer number (5264045946684).

Almost surely, 2^{231031202100000} is an apocalyptic number.

231031202100000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231031202100000 is an abundant number, since it is smaller than the sum of its proper divisors (526991414222496).

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

231031202100000 is an frugal number, since it uses more digits than its factorization.

231031202100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770104045 (or 770104017 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 231031202100000 its reverse (1202130132), we get a palindrome (231032404230132).

The spelling of 231031202100000 in words is "two hundred thirty-one trillion, thirty-one billion, two hundred two million, one hundred thousand".