231353568 has 36 divisors (see below), whose sum is σ = 657912528. Its totient is φ = 77117760.

The previous prime is 231353543. The next prime is 231353569. The reversal of 231353568 is 865353132.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231353569) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 401368 + ... + 401943.

It is an arithmetic number, because the mean of its divisors is an integer number (18275348).

Almost surely, 2^231353568 is an apocalyptic number.

It is an amenable number.

231353568 is an abundant number, since it is smaller than the sum of its proper divisors (426558960).

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

231353568 is a wasteful number, since it uses less digits than its factorization.

231353568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803327 (or 803316 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 231353568 is about 15210.3112394191. The cubic root of 231353568 is about 613.8921319843.

The spelling of 231353568 in words is "two hundred thirty-one million, three hundred fifty-three thousand, five hundred sixty-eight".