231203504100000 has 288 divisors, whose sum is σ = 760655304444672. Its totient is φ = 61486243200000.

The previous prime is 231203504099951. The next prime is 231203504100007. The reversal of 231203504100000 is 1405302132.

It is a self number, because there is not a number n which added to its sum of digits gives 231203504100000.

It is not an unprimeable number, because it can be changed into a prime (231203504100007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 109050030 + ... + 111149970.

It is an arithmetic number, because the mean of its divisors is an integer number (2641164251544).

Almost surely, 2^{231203504100000} is an apocalyptic number.

231203504100000 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 231203504100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380327652222336).

231203504100000 is an abundant number, since it is smaller than the sum of its proper divisors (529451800344672).

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

231203504100000 is an equidigital number, since it uses as much as digits as its factorization.

231203504100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100346 (or 2100318 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 231203504100000 its reverse (1405302132), we get a palindrome (231204909402132).

The spelling of 231203504100000 in words is "two hundred thirty-one trillion, two hundred three billion, five hundred four million, one hundred thousand".