231313112 has 8 divisors (see below), whose sum is σ = 433712100. Its totient is φ = 115656552.

The previous prime is 231313109. The next prime is 231313123. The reversal of 231313112 is 211313132.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14457062 + ... + 14457077.

Almost surely, 2^231313112 is an apocalyptic number.

It is an amenable number.

231313112 is a deficient number, since it is larger than the sum of its proper divisors (202398988).

231313112 is a wasteful number, since it uses less digits than its factorization.

231313112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28914145 (or 28914141 counting only the distinct ones).

The product of its digits is 108, while the sum is 17.

The square root of 231313112 is about 15208.9812939592. The cubic root of 231313112 is about 613.8563468322.

Adding to 231313112 its reverse (211313132), we get a palindrome (442626244).

The spelling of 231313112 in words is "two hundred thirty-one million, three hundred thirteen thousand, one hundred twelve".