231230112 has 24 divisors (see below), whose sum is σ = 606979296. Its totient is φ = 77076672.

The previous prime is 231230009. The next prime is 231230117. The reversal of 231230112 is 211032132.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 231230091 and 231230100.

It is not an unprimeable number, because it can be changed into a prime (231230117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1204228 + ... + 1204419.

It is an arithmetic number, because the mean of its divisors is an integer number (25290804).

Almost surely, 2^231230112 is an apocalyptic number.

It is an amenable number.

231230112 is an abundant number, since it is smaller than the sum of its proper divisors (375749184).

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

231230112 is a wasteful number, since it uses less digits than its factorization.

231230112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408660 (or 2408652 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 231230112 is about 15206.2523982735. The cubic root of 231230112 is about 613.7829165345.

Adding to 231230112 its reverse (211032132), we get a palindrome (442262244).

The spelling of 231230112 in words is "two hundred thirty-one million, two hundred thirty thousand, one hundred twelve".