231343200 has 432 divisors, whose sum is σ = 935940096. Its totient is φ = 53222400.

The previous prime is 231343193. The next prime is 231343201. The reversal of 231343200 is 2343132.

231343200 is a `hidden beast` number, since 231 + 3 + 432 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231343201) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1821537 + ... + 1821663.

It is an arithmetic number, because the mean of its divisors is an integer number (2166528).

Almost surely, 2^231343200 is an apocalyptic number.

231343200 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 231343200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (467970048).

231343200 is an abundant number, since it is smaller than the sum of its proper divisors (704596896).

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

231343200 is a wasteful number, since it uses less digits than its factorization.

231343200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 231343200 is about 15209.9704141724. The cubic root of 231343200 is about 613.8829614194.

Adding to 231343200 its reverse (2343132), we get a palindrome (233686332).

The spelling of 231343200 in words is "two hundred thirty-one million, three hundred forty-three thousand, two hundred".