320320023 has 4 divisors (see below), whose sum is σ = 427093368. Its totient is φ = 213546680.

The previous prime is 320319973. The next prime is 320320037. The reversal of 320320023 is 320023023.

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 320320023 - 2⁶ = 320319959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320319984 and 320320011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320320123) 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, 53386668 + ... + 53386673.

It is an arithmetic number, because the mean of its divisors is an integer number (106773342).

Almost surely, 2^320320023 is an apocalyptic number.

320320023 is a deficient number, since it is larger than the sum of its proper divisors (106773345).

320320023 is a wasteful number, since it uses less digits than its factorization.

320320023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106773344.

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 320320023 is about 17897.4864995060. The cubic root of 320320023 is about 684.2183158832.

Adding to 320320023 its reverse (320023023), we get a palindrome (640343046).

The spelling of 320320023 in words is "three hundred twenty million, three hundred twenty thousand, twenty-three".