320030013 has 4 divisors (see below), whose sum is σ = 426706688. Its totient is φ = 213353340.

The previous prime is 320029991. The next prime is 320030033. The reversal of 320030013 is 310030023.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310030023 = 3 ⋅103343341.

It is not a de Polignac number, because 320030013 - 2¹⁸ = 319767869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320030033) 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, 53338333 + ... + 53338338.

It is an arithmetic number, because the mean of its divisors is an integer number (106676672).

Almost surely, 2^320030013 is an apocalyptic number.

It is an amenable number.

320030013 is a deficient number, since it is larger than the sum of its proper divisors (106676675).

320030013 is a wasteful number, since it uses less digits than its factorization.

320030013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106676674.

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 320030013 is about 17889.3826891819. The cubic root of 320030013 is about 684.0117619639.

Adding to 320030013 its reverse (310030023), we get a palindrome (630060036).

The spelling of 320030013 in words is "three hundred twenty million, thirty thousand, thirteen".