320023115 has 4 divisors (see below), whose sum is σ = 384027744. Its totient is φ = 256018488.

The previous prime is 320023073. The next prime is 320023117. The reversal of 320023115 is 511320023.

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

It is a cyclic number.

It is not a de Polignac number, because 320023115 - 2⁶ = 320023051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320023093 and 320023102.

It is not an unprimeable number, because it can be changed into a prime (320023117) 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 3 ways as a sum of consecutive naturals, for example, 32002307 + ... + 32002316.

It is an arithmetic number, because the mean of its divisors is an integer number (96006936).

Almost surely, 2^320023115 is an apocalyptic number.

320023115 is a deficient number, since it is larger than the sum of its proper divisors (64004629).

320023115 is an equidigital number, since it uses as much as digits as its factorization.

320023115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64004628.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 320023115 is about 17889.1898922226. The cubic root of 320023115 is about 684.0068474800.

Adding to 320023115 its reverse (511320023), we get a palindrome (831343138).

The spelling of 320023115 in words is "three hundred twenty million, twenty-three thousand, one hundred fifteen".