300320013221 has 4 divisors (see below), whose sum is σ = 300321115692. Its totient is φ = 300318910752.

The previous prime is 300320013209. The next prime is 300320013229. The reversal of 300320013221 is 122310023003.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 131903344225 + 168416668996 = 363185^2 + 410386^2 .

It is a cyclic number.

It is not a de Polignac number, because 300320013221 - 2⁶ = 300320013157 is a prime.

It is a super-2 number, since 2×300320013221² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 300320013221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300320013229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186371 + ... + 797103.

It is an arithmetic number, because the mean of its divisors is an integer number (75080278923).

Almost surely, 2^300320013221 is an apocalyptic number.

It is an amenable number.

300320013221 is a deficient number, since it is larger than the sum of its proper divisors (1102471).

300320013221 is an equidigital number, since it uses as much as digits as its factorization.

300320013221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102470.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 300320013221 its reverse (122310023003), we get a palindrome (422630036224).

The spelling of 300320013221 in words is "three hundred billion, three hundred twenty million, thirteen thousand, two hundred twenty-one".