231311323200 has 168 divisors, whose sum is σ = 759640685440. Its totient is φ = 61622323200.

The previous prime is 231311323181. The next prime is 231311323247. The reversal of 231311323200 is 2323113132.

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, 4964010 + ... + 5010390.

Almost surely, 2^231311323200 is an apocalyptic number.

231311323200 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 231311323200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379820342720).

231311323200 is an abundant number, since it is smaller than the sum of its proper divisors (528329362240).

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

231311323200 is a wasteful number, since it uses less digits than its factorization.

231311323200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47445 (or 47430 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 231311323200 its reverse (2323113132), we get a palindrome (233634436332).

The spelling of 231311323200 in words is "two hundred thirty-one billion, three hundred eleven million, three hundred twenty-three thousand, two hundred".