123490112 has 56 divisors (see below), whose sum is σ = 257007360. Its totient is φ = 58798080.

The previous prime is 123490111. The next prime is 123490123. The reversal of 123490112 is 211094321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123490111) 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, 132464 + ... + 133392.

Almost surely, 2^123490112 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 123490112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128503680).

123490112 is an abundant number, since it is smaller than the sum of its proper divisors (133517248).

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

123490112 is an equidigital number, since it uses as much as digits as its factorization.

123490112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039 (or 1029 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 123490112 is about 11112.6104943888. The cubic root of 123490112 is about 497.9786553434.

The spelling of 123490112 in words is "one hundred twenty-three million, four hundred ninety thousand, one hundred twelve".