6430305121 has 2 divisors, whose sum is σ = 6430305122. Its totient is φ = 6430305120.

The previous prime is 6430305113. The next prime is 6430305137. The reversal of 6430305121 is 1215030346.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3580346896 + 2849958225 = 59836^2 + 53385^2 .

It is a cyclic number.

It is not a de Polignac number, because 6430305121 - 2³ = 6430305113 is a prime.

It is not a weakly prime, because it can be changed into another prime (6430305181) 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, 3215152560 + 3215152561.

It is an arithmetic number, because the mean of its divisors is an integer number (3215152561).

Almost surely, 2^6430305121 is an apocalyptic number.

It is an amenable number.

6430305121 is a deficient number, since it is larger than the sum of its proper divisors (1).

6430305121 is an equidigital number, since it uses as much as digits as its factorization.

6430305121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 6430305121 is about 80189.1833167043. The cubic root of 6430305121 is about 1859.5614182516.

Adding to 6430305121 its reverse (1215030346), we get a palindrome (7645335467).

The spelling of 6430305121 in words is "six billion, four hundred thirty million, three hundred five thousand, one hundred twenty-one".