231100233 has 32 divisors (see below), whose sum is σ = 381561600. Its totient is φ = 121874688.

The previous prime is 231100229. The next prime is 231100241. The reversal of 231100233 is 332001132.

It is not a de Polignac number, because 231100233 - 2² = 231100229 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231100213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43633 + ... + 48641.

It is an arithmetic number, because the mean of its divisors is an integer number (11923800).

Almost surely, 2^231100233 is an apocalyptic number.

It is an amenable number.

231100233 is a deficient number, since it is larger than the sum of its proper divisors (150461367).

231100233 is an equidigital number, since it uses as much as digits as its factorization.

231100233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5058 (or 5032 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 231100233 is about 15201.9812195648. The cubic root of 231100233 is about 613.6679770041.

Adding to 231100233 its reverse (332001132), we get a palindrome (563101365).

The spelling of 231100233 in words is "two hundred thirty-one million, one hundred thousand, two hundred thirty-three".