231311113 has 16 divisors (see below), whose sum is σ = 258256512. Its totient is φ = 205408000.

The previous prime is 231311107. The next prime is 231311153. The reversal of 231311113 is 311113132.

It is a cyclic number.

It is not a de Polignac number, because 231311113 - 2⁵ = 231311081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231311153) 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 15 ways as a sum of consecutive naturals, for example, 86943 + ... + 89563.

It is an arithmetic number, because the mean of its divisors is an integer number (16141032).

Almost surely, 2^231311113 is an apocalyptic number.

It is an amenable number.

231311113 is a deficient number, since it is larger than the sum of its proper divisors (26945399).

231311113 is a wasteful number, since it uses less digits than its factorization.

231311113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2816.

The product of its digits is 54, while the sum is 16.

The square root of 231311113 is about 15208.9155760692. The cubic root of 231311113 is about 613.8545785186.

Adding to 231311113 its reverse (311113132), we get a palindrome (542424245).

The spelling of 231311113 in words is "two hundred thirty-one million, three hundred eleven thousand, one hundred thirteen".