311332113 has 16 divisors (see below), whose sum is σ = 463037760. Its totient is φ = 206742528.

The previous prime is 311332069. The next prime is 311332129. The reversal of 311332113 is 311233113.

It is a happy number.

It is not a de Polignac number, because 311332113 - 2⁸ = 311331857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (311332213) 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, 15495 + ... + 29372.

It is an arithmetic number, because the mean of its divisors is an integer number (28939860).

Almost surely, 2^311332113 is an apocalyptic number.

It is an amenable number.

311332113 is a deficient number, since it is larger than the sum of its proper divisors (151705647).

311332113 is a wasteful number, since it uses less digits than its factorization.

311332113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45133 (or 45127 counting only the distinct ones).

The product of its digits is 162, while the sum is 18.

The square root of 311332113 is about 17644.6057762705. The cubic root of 311332113 is about 677.7579800293.

Adding to 311332113 its reverse (311233113), we get a palindrome (622565226).

The spelling of 311332113 in words is "three hundred eleven million, three hundred thirty-two thousand, one hundred thirteen".