312331113 has 8 divisors (see below), whose sum is σ = 462712800. Its totient is φ = 208220724.

The previous prime is 312331109. The next prime is 312331133. The reversal of 312331113 is 311133213.

It is a happy number.

It is not a de Polignac number, because 312331113 - 2² = 312331109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312331133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5783883 + ... + 5783936.

It is an arithmetic number, because the mean of its divisors is an integer number (57839100).

Almost surely, 2^312331113 is an apocalyptic number.

It is an amenable number.

312331113 is a deficient number, since it is larger than the sum of its proper divisors (150381687).

312331113 is a wasteful number, since it uses less digits than its factorization.

312331113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11567828 (or 11567822 counting only the distinct ones).

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

The square root of 312331113 is about 17672.8920383733. The cubic root of 312331113 is about 678.4821341601.

Adding to 312331113 its reverse (311133213), we get a palindrome (623464326).

The spelling of 312331113 in words is "three hundred twelve million, three hundred thirty-one thousand, one hundred thirteen".