305334121 has 2 divisors, whose sum is σ = 305334122. Its totient is φ = 305334120.

The previous prime is 305334119. The next prime is 305334157. The reversal of 305334121 is 121433503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 303979225 + 1354896 = 17435^2 + 1164^2 .

It is a cyclic number.

It is not a de Polignac number, because 305334121 - 2¹ = 305334119 is a prime.

Together with 305334119, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 305334092 and 305334101.

It is not a weakly prime, because it can be changed into another prime (305334191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152667060 + 152667061.

It is an arithmetic number, because the mean of its divisors is an integer number (152667061).

Almost surely, 2^305334121 is an apocalyptic number.

It is an amenable number.

305334121 is a deficient number, since it is larger than the sum of its proper divisors (1).

305334121 is an equidigital number, since it uses as much as digits as its factorization.

305334121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 305334121 is about 17473.8124346120. The cubic root of 305334121 is about 673.3772604472.

Adding to 305334121 its reverse (121433503), we get a palindrome (426767624).

The spelling of 305334121 in words is "three hundred five million, three hundred thirty-four thousand, one hundred twenty-one".