231320323200 has 768 divisors, whose sum is σ = 809891913600. Its totient is φ = 57967902720.

The previous prime is 231320323187. The next prime is 231320323217. The reversal of 231320323200 is 2323023132.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2122204746 + ... + 2122204854.

Almost surely, 2^231320323200 is an apocalyptic number.

231320323200 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 231320323200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404945956800).

231320323200 is an abundant number, since it is smaller than the sum of its proper divisors (578571590400).

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

231320323200 is a wasteful number, since it uses less digits than its factorization.

231320323200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 231320323200 its reverse (2323023132), we get a palindrome (233643346332).

The spelling of 231320323200 in words is "two hundred thirty-one billion, three hundred twenty million, three hundred twenty-three thousand, two hundred".