231320200 has 48 divisors (see below), whose sum is σ = 561214080. Its totient is φ = 88503360.

The previous prime is 231320191. The next prime is 231320227. The reversal of 231320200 is 2023132.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20544 + ... + 29743.

It is an arithmetic number, because the mean of its divisors is an integer number (11691960).

Almost surely, 2^231320200 is an apocalyptic number.

231320200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231320200 is an abundant number, since it is smaller than the sum of its proper divisors (329893880).

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

231320200 is a wasteful number, since it uses less digits than its factorization.

231320200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50326 (or 50317 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 231320200 is about 15209.2143123831. The cubic root of 231320200 is about 613.8626167885.

Adding to 231320200 its reverse (2023132), we get a palindrome (233343332).

The spelling of 231320200 in words is "two hundred thirty-one million, three hundred twenty thousand, two hundred".