304311113 has 4 divisors (see below), whose sum is σ = 306532500. Its totient is φ = 302089728.

The previous prime is 304311109. The next prime is 304311121. The reversal of 304311113 is 311113403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 311113403 = 8377 ⋅37139.

It can be written as a sum of positive squares in 2 ways, for example, as 187498249 + 116812864 = 13693^2 + 10808^2 .

It is a cyclic number.

It is not a de Polignac number, because 304311113 - 2² = 304311109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 304311091 and 304311100.

It is not an unprimeable number, because it can be changed into a prime (304311913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1110488 + ... + 1110761.

It is an arithmetic number, because the mean of its divisors is an integer number (76633125).

Almost surely, 2^304311113 is an apocalyptic number.

It is an amenable number.

304311113 is a deficient number, since it is larger than the sum of its proper divisors (2221387).

304311113 is a wasteful number, since it uses less digits than its factorization.

304311113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221386.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 304311113 is about 17444.5152698491. The cubic root of 304311113 is about 672.6243790897.

Adding to 304311113 its reverse (311113403), we get a palindrome (615424516).

The spelling of 304311113 in words is "three hundred four million, three hundred eleven thousand, one hundred thirteen".