231320022203100 has 288 divisors, whose sum is σ = 721045306146816. Its totient is φ = 57089623852800.

The previous prime is 231320022203059. The next prime is 231320022203113. The reversal of 231320022203100 is 1302220023132.

It is a happy number.

It is a super-3 number, since 3×231320022203100³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

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 95 ways as a sum of consecutive naturals, for example, 1207797547 + ... + 1207989053.

It is an arithmetic number, because the mean of its divisors is an integer number (2503629535232).

Almost surely, 2^{231320022203100} is an apocalyptic number.

231320022203100 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 231320022203100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360522653073408).

231320022203100 is an abundant number, since it is smaller than the sum of its proper divisors (489725283943716).

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

231320022203100 is a wasteful number, since it uses less digits than its factorization.

231320022203100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197225 (or 197218 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 231320022203100 its reverse (1302220023132), we get a palindrome (232622242226232).

The spelling of 231320022203100 in words is "two hundred thirty-one trillion, three hundred twenty billion, twenty-two million, two hundred three thousand, one hundred".