233231313 has 32 divisors (see below), whose sum is σ = 386498304. Its totient is φ = 122038272.

The previous prime is 233231291. The next prime is 233231371. The reversal of 233231313 is 313132332.

It is not a de Polignac number, because 233231313 - 2⁸ = 233231057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 233231313.

It is not an unprimeable number, because it can be changed into a prime (233231113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4381 + ... + 22037.

It is an arithmetic number, because the mean of its divisors is an integer number (12078072).

Almost surely, 2^233231313 is an apocalyptic number.

It is an amenable number.

233231313 is a deficient number, since it is larger than the sum of its proper divisors (153266991).

233231313 is a wasteful number, since it uses less digits than its factorization.

233231313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17721.

The product of its digits is 972, while the sum is 21.

The square root of 233231313 is about 15271.9125521331. The cubic root of 233231313 is about 615.5485118986.

Adding to 233231313 its reverse (313132332), we get a palindrome (546363645).

The spelling of 233231313 in words is "two hundred thirty-three million, two hundred thirty-one thousand, three hundred thirteen".