123630112 has 24 divisors (see below), whose sum is σ = 256208400. Its totient is φ = 58561344.

The previous prime is 123630097. The next prime is 123630149. The reversal of 123630112 is 211036321.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 123630112.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 101062 + ... + 102277.

It is an arithmetic number, because the mean of its divisors is an integer number (10675350).

Almost surely, 2^123630112 is an apocalyptic number.

It is an amenable number.

123630112 is an abundant number, since it is smaller than the sum of its proper divisors (132578288).

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

123630112 is a wasteful number, since it uses less digits than its factorization.

123630112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203368 (or 203360 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 123630112 is about 11118.9078600373. The cubic root of 123630112 is about 498.1667694126.

Adding to 123630112 its reverse (211036321), we get a palindrome (334666433).

The spelling of 123630112 in words is "one hundred twenty-three million, six hundred thirty thousand, one hundred twelve".