300120421 has 4 divisors (see below), whose sum is σ = 300258252. Its totient is φ = 299982592.

The previous prime is 300120413. The next prime is 300120439. The reversal of 300120421 is 124021003.

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 213890625 + 86229796 = 14625^2 + 9286^2 .

It is a cyclic number.

It is not a de Polignac number, because 300120421 - 2³ = 300120413 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 (300120461) 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, 65596 + ... + 70021.

It is an arithmetic number, because the mean of its divisors is an integer number (75064563).

Almost surely, 2^300120421 is an apocalyptic number.

It is an amenable number.

300120421 is a deficient number, since it is larger than the sum of its proper divisors (137831).

300120421 is a wasteful number, since it uses less digits than its factorization.

300120421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137830.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 300120421 is about 17323.9839817520. The cubic root of 300120421 is about 669.5225089727.

Adding to 300120421 its reverse (124021003), we get a palindrome (424141424).

The spelling of 300120421 in words is "three hundred million, one hundred twenty thousand, four hundred twenty-one".