231312100120200 has 288 divisors, whose sum is σ = 847568120293440. Its totient is φ = 56067409267200.

The previous prime is 231312100120159. The next prime is 231312100120237. The reversal of 231312100120200 is 2021001213132.

231312100120200 is a `hidden beast` number, since 2 + 3 + 131 + 210 + 0 + 120 + 200 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 134239294 + ... + 135951506.

It is an arithmetic number, because the mean of its divisors is an integer number (2942944862130).

Almost surely, 2^{231312100120200} is an apocalyptic number.

231312100120200 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 231312100120200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (423784060146720).

231312100120200 is an abundant number, since it is smaller than the sum of its proper divisors (616256020173240).

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

231312100120200 is a wasteful number, since it uses less digits than its factorization.

231312100120200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719069 (or 1719057 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 231312100120200 its reverse (2021001213132), we get a palindrome (233333101333332).

The spelling of 231312100120200 in words is "two hundred thirty-one trillion, three hundred twelve billion, one hundred million, one hundred twenty thousand, two hundred".