12123300120 has 128 divisors (see below), whose sum is σ = 37398110400. Its totient is φ = 3141697536.

The previous prime is 12123300109. The next prime is 12123300181. The reversal of 12123300120 is 2100332121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12123300120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7143112 + ... + 7144808.

Almost surely, 2^12123300120 is an apocalyptic number.

12123300120 is a gapful number since it is divisible by the number (10) 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 12123300120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18699055200).

12123300120 is an abundant number, since it is smaller than the sum of its proper divisors (25274810280).

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

12123300120 is a wasteful number, since it uses less digits than its factorization.

12123300120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3357 (or 3353 counting only the distinct ones).

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

Adding to 12123300120 its reverse (2100332121), we get a palindrome (14223632241).

The spelling of 12123300120 in words is "twelve billion, one hundred twenty-three million, three hundred thousand, one hundred twenty".