30851173124137 has 2 divisors, whose sum is σ = 30851173124138. Its totient is φ = 30851173124136.

The previous prime is 30851173124111. The next prime is 30851173124141. The reversal of 30851173124137 is 73142137115803.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20863070247321 + 9988102876816 = 4567611^2 + 3160396^2 .

It is a cyclic number.

It is not a de Polignac number, because 30851173124137 - 2³⁵ = 30816813385769 is a prime.

It is not a weakly prime, because it can be changed into another prime (30851173124437) 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, 15425586562068 + 15425586562069.

It is an arithmetic number, because the mean of its divisors is an integer number (15425586562069).

Almost surely, 2^{30851173124137} is an apocalyptic number.

It is an amenable number.

30851173124137 is a deficient number, since it is larger than the sum of its proper divisors (1).

30851173124137 is an equidigital number, since it uses as much as digits as its factorization.

30851173124137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 30851173124137 in words is "thirty trillion, eight hundred fifty-one billion, one hundred seventy-three million, one hundred twenty-four thousand, one hundred thirty-seven".