231322132200 has 96 divisors (see below), whose sum is σ = 727198724160. Its totient is φ = 60817075200.

The previous prime is 231322132157. The next prime is 231322132201. The reversal of 231322132200 is 2231223132.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (231322132201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2672449 + ... + 2757648.

It is an arithmetic number, because the mean of its divisors is an integer number (7574986710).

Almost surely, 2^231322132200 is an apocalyptic number.

231322132200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231322132200 is an abundant number, since it is smaller than the sum of its proper divisors (495876591960).

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

231322132200 is a wasteful number, since it uses less digits than its factorization.

231322132200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5430187 (or 5430178 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 231322132200 its reverse (2231223132), we get a palindrome (233553355332).

The spelling of 231322132200 in words is "two hundred thirty-one billion, three hundred twenty-two million, one hundred thirty-two thousand, two hundred".