301130521421 has 2 divisors, whose sum is σ = 301130521422. Its totient is φ = 301130521420.

The previous prime is 301130521381. The next prime is 301130521457. The reversal of 301130521421 is 124125031103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209227567396 + 91902954025 = 457414^2 + 303155^2 .

It is a cyclic number.

It is not a de Polignac number, because 301130521421 - 2⁶ = 301130521357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (301130521481) 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 as a sum of consecutive naturals, namely, 150565260710 + 150565260711.

It is an arithmetic number, because the mean of its divisors is an integer number (150565260711).

Almost surely, 2^301130521421 is an apocalyptic number.

It is an amenable number.

301130521421 is a deficient number, since it is larger than the sum of its proper divisors (1).

301130521421 is an equidigital number, since it uses as much as digits as its factorization.

301130521421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 301130521421 its reverse (124125031103), we get a palindrome (425255552524).

The spelling of 301130521421 in words is "three hundred one billion, one hundred thirty million, five hundred twenty-one thousand, four hundred twenty-one".