306023313 has 4 divisors (see below), whose sum is σ = 408031088. Its totient is φ = 204015540.

The previous prime is 306023287. The next prime is 306023321. The reversal of 306023313 is 313320603.

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.

It is not a de Polignac number, because 306023313 - 2⁵ = 306023281 is a prime.

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 306023313.

It is not an unprimeable number, because it can be changed into a prime (306023813) 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, 51003883 + ... + 51003888.

It is an arithmetic number, because the mean of its divisors is an integer number (102007772).

Almost surely, 2^306023313 is an apocalyptic number.

It is an amenable number.

306023313 is a deficient number, since it is larger than the sum of its proper divisors (102007775).

306023313 is a wasteful number, since it uses less digits than its factorization.

306023313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102007774.

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 306023313 is about 17493.5220295971. The cubic root of 306023313 is about 673.8835227697.

Adding to 306023313 its reverse (313320603), we get a palindrome (619343916).

The spelling of 306023313 in words is "three hundred six million, twenty-three thousand, three hundred thirteen".