231256990800 has 1080 divisors, whose sum is σ = 943312249152. Its totient is φ = 52448563200.

The previous prime is 231256990787. The next prime is 231256990819. The reversal of 231256990800 is 8099652132.

231256990800 is a `hidden beast` number, since 2 + 3 + 1 + 2 + 569 + 9 + 0 + 80 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 1384772317 + ... + 1384772483.

Almost surely, 2^231256990800 is an apocalyptic number.

231256990800 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 231256990800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (471656124576).

231256990800 is an abundant number, since it is smaller than the sum of its proper divisors (712055258352).

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

231256990800 is a wasteful number, since it uses less digits than its factorization.

231256990800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 231256990800 in words is "two hundred thirty-one billion, two hundred fifty-six million, nine hundred ninety thousand, eight hundred".