231112232 has 48 divisors (see below), whose sum is σ = 472140000. Its totient is φ = 106007616.

The previous prime is 231112213. The next prime is 231112237. The reversal of 231112232 is 232211132.

It is a self number, because there is not a number n which added to its sum of digits gives 231112232.

It is not an unprimeable number, because it can be changed into a prime (231112237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268619 + ... + 269477.

It is an arithmetic number, because the mean of its divisors is an integer number (9836250).

Almost surely, 2^231112232 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 231112232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236070000).

231112232 is an abundant number, since it is smaller than the sum of its proper divisors (241027768).

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

231112232 is a wasteful number, since it uses less digits than its factorization.

231112232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090 (or 1073 counting only the distinct ones).

The product of its digits is 144, while the sum is 17.

The square root of 231112232 is about 15202.3758669492. The cubic root of 231112232 is about 613.6785976116.

Adding to 231112232 its reverse (232211132), we get a palindrome (463323364).

The spelling of 231112232 in words is "two hundred thirty-one million, one hundred twelve thousand, two hundred thirty-two".