231000992938200 has 48 divisors (see below), whose sum is σ = 716103078110280. Its totient is φ = 61600264783360.

The previous prime is 231000992938181. The next prime is 231000992938211. The reversal of 231000992938200 is 2839299000132.

It is a happy number.

It is a super-2 number, since 2×231000992938200² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231000992938200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192500826849 + ... + 192500828048.

Almost surely, 2^{231000992938200} is an apocalyptic number.

231000992938200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231000992938200 is an abundant number, since it is smaller than the sum of its proper divisors (485102085172080).

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

231000992938200 is a wasteful number, since it uses less digits than its factorization.

231000992938200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385001654916 (or 385001654907 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 48.

The spelling of 231000992938200 in words is "two hundred thirty-one trillion, nine hundred ninety-two million, nine hundred thirty-eight thousand, two hundred".