306315113 has 4 divisors (see below), whose sum is σ = 329877828. Its totient is φ = 282752400.

The previous prime is 306315109. The next prime is 306315137. The reversal of 306315113 is 311513603.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 311513603 = 47 ⋅6627949.

It can be written as a sum of positive squares in 2 ways, for example, as 154828249 + 151486864 = 12443^2 + 12308^2 .

It is a cyclic number.

It is not a de Polignac number, because 306315113 - 2² = 306315109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (306315413) 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, 11781338 + ... + 11781363.

It is an arithmetic number, because the mean of its divisors is an integer number (82469457).

Almost surely, 2^306315113 is an apocalyptic number.

It is an amenable number.

306315113 is a deficient number, since it is larger than the sum of its proper divisors (23562715).

306315113 is a wasteful number, since it uses less digits than its factorization.

306315113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23562714.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 306315113 is about 17501.8602725539. The cubic root of 306315113 is about 674.0976423446.

Adding to 306315113 its reverse (311513603), we get a palindrome (617828716).

The spelling of 306315113 in words is "three hundred six million, three hundred fifteen thousand, one hundred thirteen".