300120110021 has 4 divisors (see below), whose sum is σ = 300813228492. Its totient is φ = 299426991552.

The previous prime is 300120109999. The next prime is 300120110029. The reversal of 300120110021 is 120011021003.

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 178748001796 + 121372108225 = 422786^2 + 348385^2 .

It is a cyclic number.

It is not a de Polignac number, because 300120110021 - 2¹⁰ = 300120108997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 300120109984 and 300120110011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300120110029) 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, 346558586 + ... + 346559451.

It is an arithmetic number, because the mean of its divisors is an integer number (75203307123).

Almost surely, 2^300120110021 is an apocalyptic number.

It is an amenable number.

300120110021 is a deficient number, since it is larger than the sum of its proper divisors (693118471).

300120110021 is an equidigital number, since it uses as much as digits as its factorization.

300120110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693118470.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 300120110021 its reverse (120011021003), we get a palindrome (420131131024).

The spelling of 300120110021 in words is "three hundred billion, one hundred twenty million, one hundred ten thousand, twenty-one".