30120665453 has 2 divisors, whose sum is σ = 30120665454. Its totient is φ = 30120665452.

The previous prime is 30120665441. The next prime is 30120665503. The reversal of 30120665453 is 35456602103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29879888164 + 240777289 = 172858^2 + 15517^2 .

It is a cyclic number.

It is not a de Polignac number, because 30120665453 - 2¹⁸ = 30120403309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30120665423) 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, 15060332726 + 15060332727.

It is an arithmetic number, because the mean of its divisors is an integer number (15060332727).

Almost surely, 2^30120665453 is an apocalyptic number.

It is an amenable number.

30120665453 is a deficient number, since it is larger than the sum of its proper divisors (1).

30120665453 is an equidigital number, since it uses as much as digits as its factorization.

30120665453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 30120665453 in words is "thirty billion, one hundred twenty million, six hundred sixty-five thousand, four hundred fifty-three".