230644643233 has 4 divisors (see below), whose sum is σ = 230645603988. Its totient is φ = 230643682480.

The previous prime is 230644643221. The next prime is 230644643261. The reversal of 230644643233 is 332346446032.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 22518903969 + 208125739264 = 150063^2 + 456208^2 .

It is a cyclic number.

It is not a de Polignac number, because 230644643233 - 2²⁵ = 230611088801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230644643533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223935 + ... + 715147.

It is an arithmetic number, because the mean of its divisors is an integer number (57661400997).

Almost surely, 2^230644643233 is an apocalyptic number.

It is an amenable number.

230644643233 is a deficient number, since it is larger than the sum of its proper divisors (960755).

230644643233 is an equidigital number, since it uses as much as digits as its factorization.

230644643233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960754.

The product of its (nonzero) digits is 746496, while the sum is 40.

The spelling of 230644643233 in words is "two hundred thirty billion, six hundred forty-four million, six hundred forty-three thousand, two hundred thirty-three".