300120010021 has 4 divisors (see below), whose sum is σ = 323206164652. Its totient is φ = 277033855392.

The previous prime is 300120009989. The next prime is 300120010037. The reversal of 300120010021 is 120010021003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 97475084100 + 202644925921 = 312210^2 + 450161^2 .

It is a cyclic number.

It is not a de Polignac number, because 300120010021 - 2⁵ = 300120009989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300120010321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11543077296 + ... + 11543077321.

It is an arithmetic number, because the mean of its divisors is an integer number (80801541163).

Almost surely, 2^300120010021 is an apocalyptic number.

It is an amenable number.

300120010021 is a deficient number, since it is larger than the sum of its proper divisors (23086154631).

300120010021 is a wasteful number, since it uses less digits than its factorization.

300120010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23086154630.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 300120010021 its reverse (120010021003), we get a palindrome (420130031024).

The spelling of 300120010021 in words is "three hundred billion, one hundred twenty million, ten thousand, twenty-one".