320130233 has 4 divisors (see below), whose sum is σ = 320194788. Its totient is φ = 320065680.

The previous prime is 320130203. The next prime is 320130263. The reversal of 320130233 is 332031023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332031023 = 19 ⋅17475317.

It is an interprime number because it is at equal distance from previous prime (320130203) and next prime (320130263).

It can be written as a sum of positive squares in 2 ways, for example, as 131974144 + 188156089 = 11488^2 + 13717^2 .

It is a cyclic number.

It is not a de Polignac number, because 320130233 - 2⁸ = 320129977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320130203) 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, 24158 + ... + 34983.

It is an arithmetic number, because the mean of its divisors is an integer number (80048697).

Almost surely, 2^320130233 is an apocalyptic number.

It is an amenable number.

320130233 is a deficient number, since it is larger than the sum of its proper divisors (64555).

320130233 is an equidigital number, since it uses as much as digits as its factorization.

320130233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64554.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 320130233 is about 17892.1835727225. The cubic root of 320130233 is about 684.0831557930.

Adding to 320130233 its reverse (332031023), we get a palindrome (652161256).

The spelling of 320130233 in words is "three hundred twenty million, one hundred thirty thousand, two hundred thirty-three".