320012233 has 4 divisors (see below), whose sum is σ = 338836500. Its totient is φ = 301187968.

The previous prime is 320012213. The next prime is 320012239. The reversal of 320012233 is 332210023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 239228089 + 80784144 = 15467^2 + 8988^2 .

It is a cyclic number.

It is not a de Polignac number, because 320012233 - 2⁵ = 320012201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320012239) 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 3 ways as a sum of consecutive naturals, for example, 9412108 + ... + 9412141.

It is an arithmetic number, because the mean of its divisors is an integer number (84709125).

Almost surely, 2^320012233 is an apocalyptic number.

It is an amenable number.

320012233 is a deficient number, since it is larger than the sum of its proper divisors (18824267).

320012233 is a wasteful number, since it uses less digits than its factorization.

320012233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18824266.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 320012233 is about 17888.8857394752. The cubic root of 320012233 is about 683.9990944495. Note that the first 3 decimals are identical.

Adding to 320012233 its reverse (332210023), we get a palindrome (652222256).

The spelling of 320012233 in words is "three hundred twenty million, twelve thousand, two hundred thirty-three".