231516112 has 20 divisors (see below), whose sum is σ = 449068356. Its totient is φ = 115627520.

The previous prime is 231516107. The next prime is 231516143. The reversal of 231516112 is 211615132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 205750336 + 25765776 = 14344^2 + 5076^2 .

It is a congruent 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, 7368 + ... + 22744.

Almost surely, 2^231516112 is an apocalyptic number.

It is an amenable number.

231516112 is a deficient number, since it is larger than the sum of its proper divisors (217552244).

231516112 is a wasteful number, since it uses less digits than its factorization.

231516112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16326 (or 16320 counting only the distinct ones).

The product of its digits is 360, while the sum is 22.

The square root of 231516112 is about 15215.6535186629. The cubic root of 231516112 is about 614.0358674277.

The spelling of 231516112 in words is "two hundred thirty-one million, five hundred sixteen thousand, one hundred twelve".