231000322200 has 96 divisors (see below), whose sum is σ = 733566954960. Its totient is φ = 60097638400.

The previous prime is 231000322193. The next prime is 231000322219. The reversal of 231000322200 is 2223000132.

It is a super-2 number, since 2×231000322200² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 231000322200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4670529 + ... + 4719728.

Almost surely, 2^231000322200 is an apocalyptic number.

231000322200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231000322200 is an abundant number, since it is smaller than the sum of its proper divisors (502566632760).

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

231000322200 is a wasteful number, since it uses less digits than its factorization.

231000322200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9390317 (or 9390308 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 231000322200 its reverse (2223000132), we get a palindrome (233223322332).

The spelling of 231000322200 in words is "two hundred thirty-one billion, three hundred twenty-two thousand, two hundred".