320230013 has 4 divisors (see below), whose sum is σ = 320281500. Its totient is φ = 320178528.

The previous prime is 320229997. The next prime is 320230021. The reversal of 320230013 is 310032023.

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

It can be written as a sum of positive squares in 2 ways, for example, as 82391929 + 237838084 = 9077^2 + 15422^2 .

It is a cyclic number.

It is not a de Polignac number, because 320230013 - 2⁴ = 320229997 is a prime.

It is a super-2 number, since 2×320230013² = 205094522451960338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320230013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320230033) 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, 14888 + ... + 29361.

It is an arithmetic number, because the mean of its divisors is an integer number (80070375).

Almost surely, 2^320230013 is an apocalyptic number.

It is an amenable number.

320230013 is a deficient number, since it is larger than the sum of its proper divisors (51487).

320230013 is an equidigital number, since it uses as much as digits as its factorization.

320230013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51486.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 320230013 is about 17894.9717239229. The cubic root of 320230013 is about 684.1542213780.

Adding to 320230013 its reverse (310032023), we get a palindrome (630262036).

The spelling of 320230013 in words is "three hundred twenty million, two hundred thirty thousand, thirteen".