311020113 has 16 divisors (see below), whose sum is σ = 427449536. Its totient is φ = 201009600.

The previous prime is 311020109. The next prime is 311020141.

311020113 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 311020113 - 2² = 311020109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311020153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26463 + ... + 36363.

It is an arithmetic number, because the mean of its divisors is an integer number (26715596).

Almost surely, 2^311020113 is an apocalyptic number.

It is an amenable number.

311020113 is a deficient number, since it is larger than the sum of its proper divisors (116429423).

311020113 is a wasteful number, since it uses less digits than its factorization.

311020113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10224.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 311020113 is about 17635.7623311271. The cubic root of 311020113 is about 677.5315003758.

The spelling of 311020113 in words is "three hundred eleven million, twenty thousand, one hundred thirteen".