231550550310000 has 200 divisors, whose sum is σ = 749512804927744. Its totient is φ = 61578563040000.

The previous prime is 231550550309861. The next prime is 231550550310047. The reversal of 231550550310000 is 13055055132.

It is a tau number, because it is divible by the number of its divisors (200).

It is a super-2 number, since 2×231550550310000² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 231550550310000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 494535 + ... + 21525465.

Almost surely, 2^{231550550310000} is an apocalyptic number.

231550550310000 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 231550550310000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374756402463872).

231550550310000 is an abundant number, since it is smaller than the sum of its proper divisors (517962254617744).

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

231550550310000 is a wasteful number, since it uses less digits than its factorization.

231550550310000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21031329 (or 21031308 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 30.

The spelling of 231550550310000 in words is "two hundred thirty-one trillion, five hundred fifty billion, five hundred fifty million, three hundred ten thousand".