30128760055111 has 2 divisors, whose sum is σ = 30128760055112. Its totient is φ = 30128760055110.

The previous prime is 30128760055091. The next prime is 30128760055123. The reversal of 30128760055111 is 11155006782103.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30128760055111 - 2⁹ = 30128760054599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30128760055171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15064380027555 + 15064380027556.

It is an arithmetic number, because the mean of its divisors is an integer number (15064380027556).

Almost surely, 2^{30128760055111} is an apocalyptic number.

30128760055111 is a deficient number, since it is larger than the sum of its proper divisors (1).

30128760055111 is an equidigital number, since it uses as much as digits as its factorization.

30128760055111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 40.

The spelling of 30128760055111 in words is "thirty trillion, one hundred twenty-eight billion, seven hundred sixty million, fifty-five thousand, one hundred eleven".