1304350121 has 2 divisors, whose sum is σ = 1304350122. Its totient is φ = 1304350120.

The previous prime is 1304350043. The next prime is 1304350127. The reversal of 1304350121 is 1210534031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1211805721 + 92544400 = 34811^2 + 9620^2 .

It is a cyclic number.

It is not a de Polignac number, because 1304350121 - 2¹⁰ = 1304349097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1304350093 and 1304350102.

It is not a weakly prime, because it can be changed into another prime (1304350127) 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, 652175060 + 652175061.

It is an arithmetic number, because the mean of its divisors is an integer number (652175061).

Almost surely, 2^1304350121 is an apocalyptic number.

It is an amenable number.

1304350121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304350121 is an equidigital number, since it uses as much as digits as its factorization.

1304350121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1304350121 is about 36115.7876973492. The cubic root of 1304350121 is about 1092.6088844134.

Adding to 1304350121 its reverse (1210534031), we get a palindrome (2514884152).

The spelling of 1304350121 in words is "one billion, three hundred four million, three hundred fifty thousand, one hundred twenty-one".