320413307 has 2 divisors, whose sum is σ = 320413308. Its totient is φ = 320413306.

The previous prime is 320413277. The next prime is 320413333. The reversal of 320413307 is 703314023.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320413307 - 2¹⁰ = 320412283 is a prime.

It is not a weakly prime, because it can be changed into another prime (320413337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160206653 + 160206654.

It is an arithmetic number, because the mean of its divisors is an integer number (160206654).

Almost surely, 2^320413307 is an apocalyptic number.

320413307 is a deficient number, since it is larger than the sum of its proper divisors (1).

320413307 is an equidigital number, since it uses as much as digits as its factorization.

320413307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 320413307 is about 17900.0923740633. The cubic root of 320413307 is about 684.2847290761.

The spelling of 320413307 in words is "three hundred twenty million, four hundred thirteen thousand, three hundred seven".