12003012300 has 144 divisors (see below), whose sum is σ = 36592657920. Its totient is φ = 3031733760.

The previous prime is 12003012289. The next prime is 12003012319. The reversal of 12003012300 is 321030021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 702256 + ... + 719144.

It is an arithmetic number, because the mean of its divisors is an integer number (254115680).

Almost surely, 2^12003012300 is an apocalyptic number.

12003012300 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 12003012300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18296328960).

12003012300 is an abundant number, since it is smaller than the sum of its proper divisors (24589645620).

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

12003012300 is a wasteful number, since it uses less digits than its factorization.

12003012300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17032 (or 17025 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 12003012300 its reverse (321030021), we get a palindrome (12324042321).

The spelling of 12003012300 in words is "twelve billion, three million, twelve thousand, three hundred".