231112 has 16 divisors (see below), whose sum is σ = 495360. Its totient is φ = 99024.

The previous prime is 231109. The next prime is 231131. The reversal of 231112 is 211132.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2008 + ... + 2119.

It is an arithmetic number, because the mean of its divisors is an integer number (30960).

2²³¹¹¹² is an apocalyptic number.

It is an amenable number.

231112 is an abundant number, since it is smaller than the sum of its proper divisors (264248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231112 is a wasteful number, since it uses less digits than its factorization.

231112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4140 (or 4136 counting only the distinct ones).

The product of its digits is 12, while the sum is 10.

The square root of 231112 is about 480.7410945613. The cubic root of 231112 is about 61.3678392266.

Adding to 231112 its reverse (211132), we get a palindrome (442244).

It can be divided in two parts, 231 and 112, that added together give a palindrome (343).

The spelling of 231112 in words is "two hundred thirty-one thousand, one hundred twelve".