123004112 has 120 divisors (see below), whose sum is σ = 320604480. Its totient is φ = 45050880.

The previous prime is 123004103. The next prime is 123004117. The reversal of 123004112 is 211400321.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123004117) 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 23 ways as a sum of consecutive naturals, for example, 146189 + ... + 147027.

It is an arithmetic number, because the mean of its divisors is an integer number (2671704).

Almost surely, 2^123004112 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 123004112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160302240).

123004112 is an abundant number, since it is smaller than the sum of its proper divisors (197600368).

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

123004112 is a wasteful number, since it uses less digits than its factorization.

123004112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889 (or 876 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 123004112 is about 11090.7218881369. The cubic root of 123004112 is about 497.3245252046.

Adding to 123004112 its reverse (211400321), we get a palindrome (334404433).

The spelling of 123004112 in words is "one hundred twenty-three million, four thousand, one hundred twelve".