231312100200000 has 336 divisors, whose sum is σ = 765226669858560. Its totient is φ = 61662338560000.

The previous prime is 231312100199951. The next prime is 231312100200001. The reversal of 231312100200000 is 2001213132.

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 (231312100200001) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1813736236 + ... + 1813863764.

It is an arithmetic number, because the mean of its divisors is an integer number (2277460326960).

Almost surely, 2^{231312100200000} is an apocalyptic number.

231312100200000 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 231312100200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382613334929280).

231312100200000 is an abundant number, since it is smaller than the sum of its proper divisors (533914569658560).

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

231312100200000 is an equidigital number, since it uses as much as digits as its factorization.

231312100200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130592 (or 130562 counting only the distinct ones).

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

Adding to 231312100200000 its reverse (2001213132), we get a palindrome (231314101413132).

The spelling of 231312100200000 in words is "two hundred thirty-one trillion, three hundred twelve billion, one hundred million, two hundred thousand".