30430302121 has 2 divisors, whose sum is σ = 30430302122. Its totient is φ = 30430302120.

The previous prime is 30430302083. The next prime is 30430302197. The reversal of 30430302121 is 12120303403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18994352400 + 11435949721 = 137820^2 + 106939^2 .

It is a cyclic number.

It is not a de Polignac number, because 30430302121 - 2⁹ = 30430301609 is a prime.

It is not a weakly prime, because it can be changed into another prime (30430309121) 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, 15215151060 + 15215151061.

It is an arithmetic number, because the mean of its divisors is an integer number (15215151061).

Almost surely, 2^30430302121 is an apocalyptic number.

It is an amenable number.

30430302121 is a deficient number, since it is larger than the sum of its proper divisors (1).

30430302121 is an equidigital number, since it uses as much as digits as its factorization.

30430302121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 30430302121 its reverse (12120303403), we get a palindrome (42550605524).

The spelling of 30430302121 in words is "thirty billion, four hundred thirty million, three hundred two thousand, one hundred twenty-one".