300121310021 has 4 divisors (see below), whose sum is σ = 323207564652. Its totient is φ = 277035055392.

The previous prime is 300121309963. The next prime is 300121310123. The reversal of 300121310021 is 120013121003.

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 106181481025 + 193939828996 = 325855^2 + 440386^2 .

It is a cyclic number.

It is not a de Polignac number, because 300121310021 - 2²⁶ = 300054201157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 300121309978 and 300121310005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300121310821) 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, 11543127296 + ... + 11543127321.

It is an arithmetic number, because the mean of its divisors is an integer number (80801891163).

Almost surely, 2^300121310021 is an apocalyptic number.

It is an amenable number.

300121310021 is a deficient number, since it is larger than the sum of its proper divisors (23086254631).

300121310021 is a wasteful number, since it uses less digits than its factorization.

300121310021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23086254630.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 300121310021 its reverse (120013121003), we get a palindrome (420134431024).

The spelling of 300121310021 in words is "three hundred billion, one hundred twenty-one million, three hundred ten thousand, twenty-one".