320565023 has 2 divisors, whose sum is σ = 320565024. Its totient is φ = 320565022.

The previous prime is 320565013. The next prime is 320565029.

320565023 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 320565023 - 2¹² = 320560927 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 320564983 and 320565001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320565029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160282511 + 160282512.

It is an arithmetic number, because the mean of its divisors is an integer number (160282512).

Almost surely, 2^320565023 is an apocalyptic number.

320565023 is a deficient number, since it is larger than the sum of its proper divisors (1).

320565023 is an equidigital number, since it uses as much as digits as its factorization.

320565023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 320565023 is about 17904.3297277502. The cubic root of 320565023 is about 684.3927151868.

The spelling of 320565023 in words is "three hundred twenty million, five hundred sixty-five thousand, twenty-three".