320231233 has 8 divisors (see below), whose sum is σ = 366733952. Its totient is φ = 273917376.

The previous prime is 320231221. The next prime is 320231237. The reversal of 320231233 is 332132023.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320231233 - 2⁵ = 320231201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320231233.

It is not an unprimeable number, because it can be changed into a prime (320231237) 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 7 ways as a sum of consecutive naturals, for example, 43560 + ... + 50377.

It is an arithmetic number, because the mean of its divisors is an integer number (45841744).

Almost surely, 2^320231233 is an apocalyptic number.

It is an amenable number.

320231233 is a deficient number, since it is larger than the sum of its proper divisors (46502719).

320231233 is an equidigital number, since it uses as much as digits as its factorization.

320231233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94431.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 320231233 is about 17895.0058116783. The cubic root of 320231233 is about 684.1550901984.

Adding to 320231233 its reverse (332132023), we get a palindrome (652363256).

The spelling of 320231233 in words is "three hundred twenty million, two hundred thirty-one thousand, two hundred thirty-three".