311658113 has 4 divisors (see below), whose sum is σ = 335631828. Its totient is φ = 287684400.

The previous prime is 311658077. The next prime is 311658163. The reversal of 311658113 is 311856113.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 79156609 + 232501504 = 8897^2 + 15248^2 .

It is a cyclic number.

It is not a de Polignac number, because 311658113 - 2⁶ = 311658049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311658163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11986838 + ... + 11986863.

It is an arithmetic number, because the mean of its divisors is an integer number (83907957).

Almost surely, 2^311658113 is an apocalyptic number.

It is an amenable number.

311658113 is a deficient number, since it is larger than the sum of its proper divisors (23973715).

311658113 is a wasteful number, since it uses less digits than its factorization.

311658113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23973714.

The product of its digits is 2160, while the sum is 29.

The square root of 311658113 is about 17653.8413100379. The cubic root of 311658113 is about 677.9944606422.

The spelling of 311658113 in words is "three hundred eleven million, six hundred fifty-eight thousand, one hundred thirteen".