320320323 has 12 divisors (see below), whose sum is σ = 468260520. Its totient is φ = 210973536.

The previous prime is 320320313. The next prime is 320320327. The reversal of 320320323 is 323023023.

320320323 is a `hidden beast` number, since 3 + 20 + 320 + 323 = 666.

It is not a de Polignac number, because 320320323 - 2⁵ = 320320291 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320320296 and 320320305.

It is not an unprimeable number, because it can be changed into a prime (320320327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213658 + ... + 215151.

It is an arithmetic number, because the mean of its divisors is an integer number (39021710).

Almost surely, 2^320320323 is an apocalyptic number.

320320323 is a deficient number, since it is larger than the sum of its proper divisors (147940197).

320320323 is a wasteful number, since it uses less digits than its factorization.

320320323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428898 (or 428895 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

The square root of 320320323 is about 17897.4948805692. The cubic root of 320320323 is about 684.2185294877.

Adding to 320320323 its reverse (323023023), we get a palindrome (643343346).

The spelling of 320320323 in words is "three hundred twenty million, three hundred twenty thousand, three hundred twenty-three".