12301030021 has 48 divisors (see below), whose sum is σ = 15348960000. Its totient is φ = 9811283328.

The previous prime is 12301030019. The next prime is 12301030033. The reversal of 12301030021 is 12003010321.

12301030021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12301030021 - 2¹ = 12301030019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12301029983 and 12301030010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12301030061) 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 47 ways as a sum of consecutive naturals, for example, 4473355 + ... + 4476103.

It is an arithmetic number, because the mean of its divisors is an integer number (319770000).

Almost surely, 2^12301030021 is an apocalyptic number.

It is an amenable number.

12301030021 is a deficient number, since it is larger than the sum of its proper divisors (3047929979).

12301030021 is a wasteful number, since it uses less digits than its factorization.

12301030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2906 (or 2899 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 12301030021 its reverse (12003010321), we get a palindrome (24304040342).

It can be divided in two parts, 123010300 and 21, that added together give a palindrome (123010321).

The spelling of 12301030021 in words is "twelve billion, three hundred one million, thirty thousand, twenty-one".