301421213 has 2 divisors, whose sum is σ = 301421214. Its totient is φ = 301421212.

The previous prime is 301421207. The next prime is 301421243. The reversal of 301421213 is 312124103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193822084 + 107599129 = 13922^2 + 10373^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-301421213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 301421191 and 301421200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (301421243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150710606 + 150710607.

It is an arithmetic number, because the mean of its divisors is an integer number (150710607).

Almost surely, 2^301421213 is an apocalyptic number.

It is an amenable number.

301421213 is a deficient number, since it is larger than the sum of its proper divisors (1).

301421213 is an equidigital number, since it uses as much as digits as its factorization.

301421213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 301421213 is about 17361.4864858975. The cubic root of 301421213 is about 670.4884038179.

Adding to 301421213 its reverse (312124103), we get a palindrome (613545316).

The spelling of 301421213 in words is "three hundred one million, four hundred twenty-one thousand, two hundred thirteen".