12003012302100 has 36 divisors (see below), whose sum is σ = 34728715594944. Its totient is φ = 3200803280480.

The previous prime is 12003012302069. The next prime is 12003012302101. The reversal of 12003012302100 is 120321030021.

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 12003012302100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003012302101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20005020204 + ... + 20005020803.

It is an arithmetic number, because the mean of its divisors is an integer number (964686544304).

Almost surely, 2^{12003012302100} is an apocalyptic number.

12003012302100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12003012302100 is an abundant number, since it is smaller than the sum of its proper divisors (22725703292844).

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

12003012302100 is a wasteful number, since it uses less digits than its factorization.

12003012302100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40010041024 (or 40010041017 counting only the distinct ones).

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

Adding to 12003012302100 its reverse (120321030021), we get a palindrome (12123333332121).

The spelling of 12003012302100 in words is "twelve trillion, three billion, twelve million, three hundred two thousand, one hundred".