231210112 has 64 divisors (see below), whose sum is σ = 532929600. Its totient is φ = 97864704.

The previous prime is 231210103. The next prime is 231210131. The reversal of 231210112 is 211012132.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 231210092 and 231210101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72814 + ... + 75922.

It is an arithmetic number, because the mean of its divisors is an integer number (8327025).

Almost surely, 2^231210112 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 231210112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266464800).

231210112 is an abundant number, since it is smaller than the sum of its proper divisors (301719488).

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

231210112 is an equidigital number, since it uses as much as digits as its factorization.

231210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3213 (or 3201 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 231210112 is about 15205.5947598244. The cubic root of 231210112 is about 613.7652198598.

Adding to 231210112 its reverse (211012132), we get a palindrome (442222244).

The spelling of 231210112 in words is "two hundred thirty-one million, two hundred ten thousand, one hundred twelve".