30420014993 has 2 divisors, whose sum is σ = 30420014994. Its totient is φ = 30420014992.

The previous prime is 30420014971. The next prime is 30420015013. The reversal of 30420014993 is 39941002403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16025534464 + 14394480529 = 126592^2 + 119977^2 .

It is a cyclic number.

It is not a de Polignac number, because 30420014993 - 2¹⁸ = 30419752849 is a prime.

It is not a weakly prime, because it can be changed into another prime (30420014393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15210007496 + 15210007497.

It is an arithmetic number, because the mean of its divisors is an integer number (15210007497).

Almost surely, 2^30420014993 is an apocalyptic number.

It is an amenable number.

30420014993 is a deficient number, since it is larger than the sum of its proper divisors (1).

30420014993 is an equidigital number, since it uses as much as digits as its factorization.

30420014993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 35.

The spelling of 30420014993 in words is "thirty billion, four hundred twenty million, fourteen thousand, nine hundred ninety-three".