306322134421 has 2 divisors, whose sum is σ = 306322134422. Its totient is φ = 306322134420.

The previous prime is 306322134407. The next prime is 306322134449. The reversal of 306322134421 is 124431223603.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 272598852100 + 33723282321 = 522110^2 + 183639^2 .

It is a cyclic number.

It is not a de Polignac number, because 306322134421 - 2³³ = 297732199829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (306322134401) 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, 153161067210 + 153161067211.

It is an arithmetic number, because the mean of its divisors is an integer number (153161067211).

Almost surely, 2^306322134421 is an apocalyptic number.

It is an amenable number.

306322134421 is a deficient number, since it is larger than the sum of its proper divisors (1).

306322134421 is an equidigital number, since it uses as much as digits as its factorization.

306322134421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 31.

The spelling of 306322134421 in words is "three hundred six billion, three hundred twenty-two million, one hundred thirty-four thousand, four hundred twenty-one".