123230112 has 48 divisors (see below), whose sum is σ = 327136320. Its totient is φ = 40612352.

The previous prime is 123230111. The next prime is 123230117. The reversal of 123230112 is 211032321.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 123230091 and 123230100.

It is not an unprimeable number, because it can be changed into a prime (123230111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1333 + ... + 15755.

It is an arithmetic number, because the mean of its divisors is an integer number (6815340).

Almost surely, 2^123230112 is an apocalyptic number.

123230112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123230112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163568160).

123230112 is an abundant number, since it is smaller than the sum of its proper divisors (203906208).

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

123230112 is a wasteful number, since it uses less digits than its factorization.

123230112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14525 (or 14517 counting only the distinct ones).

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

The square root of 123230112 is about 11100.9059089788. The cubic root of 123230112 is about 497.6289230956.

Adding to 123230112 its reverse (211032321), we get a palindrome (334262433).

The spelling of 123230112 in words is "one hundred twenty-three million, two hundred thirty thousand, one hundred twelve".