231116 has 12 divisors (see below), whose sum is σ = 425880. Its totient is φ = 109440.

The previous prime is 231109. The next prime is 231131. The reversal of 231116 is 611132.

231116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 231116.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 231116.

It is an unprimeable number.

231116 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1445 + ... + 1596.

It is an arithmetic number, because the mean of its divisors is an integer number (35490).

2²³¹¹¹⁶ is an apocalyptic number.

It is an amenable number.

231116 is a deficient number, since it is larger than the sum of its proper divisors (194764).

231116 is a wasteful number, since it uses less digits than its factorization.

231116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3064 (or 3062 counting only the distinct ones).

The product of its digits is 36, while the sum is 14.

The square root of 231116 is about 480.7452547868. The cubic root of 231116 is about 61.3681932684.

Adding to 231116 its reverse (611132), we get a palindrome (842248).

It can be divided in two parts, 231 and 116, that multiplied together give a triangular number (26796 = T₂₃₁).

The spelling of 231116 in words is "two hundred thirty-one thousand, one hundred sixteen".