12300243021 has 54 divisors (see below), whose sum is σ = 19909410794. Its totient is φ = 7312219200.

The previous prime is 12300242987. The next prime is 12300243031. The reversal of 12300243021 is 12034200321.

12300243021 is a `hidden beast` number, since 1 + 230 + 0 + 2 + 430 + 2 + 1 = 666.

12300243021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1460309796 + 10839933225 = 38214^2 + 104115^2 .

It is not a de Polignac number, because 12300243021 - 2¹⁰ = 12300241997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12300242985 and 12300243003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12300243031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 3056991 + ... + 3061011.

Almost surely, 2^12300243021 is an apocalyptic number.

12300243021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12300243021 is a deficient number, since it is larger than the sum of its proper divisors (7609167773).

12300243021 is a wasteful number, since it uses less digits than its factorization.

12300243021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4155 (or 4088 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12300243021 its reverse (12034200321), we get a palindrome (24334443342).

The spelling of 12300243021 in words is "twelve billion, three hundred million, two hundred forty-three thousand, twenty-one".