231252112 has 80 divisors (see below), whose sum is σ = 559464192. Its totient is φ = 90155520.

The previous prime is 231252067. The next prime is 231252113. The reversal of 231252112 is 211252132.

It is a self number, because there is not a number n which added to its sum of digits gives 231252112.

It is not an unprimeable number, because it can be changed into a prime (231252113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102258 + ... + 104494.

Almost surely, 2^231252112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231252112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279732096).

231252112 is an abundant number, since it is smaller than the sum of its proper divisors (328212080).

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

231252112 is a wasteful number, since it uses less digits than its factorization.

231252112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2336 (or 2330 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 231252112 is about 15206.9757677192. The cubic root of 231252112 is about 613.8023816982.

The spelling of 231252112 in words is "two hundred thirty-one million, two hundred fifty-two thousand, one hundred twelve".