30115810117 has 2 divisors, whose sum is σ = 30115810118. Its totient is φ = 30115810116.

The previous prime is 30115810091. The next prime is 30115810139. The reversal of 30115810117 is 71101851103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29751420196 + 364389921 = 172486^2 + 19089^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30115810117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30115810147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15057905058 + 15057905059.

It is an arithmetic number, because the mean of its divisors is an integer number (15057905059).

Almost surely, 2^30115810117 is an apocalyptic number.

It is an amenable number.

30115810117 is a deficient number, since it is larger than the sum of its proper divisors (1).

30115810117 is an equidigital number, since it uses as much as digits as its factorization.

30115810117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 28.

The spelling of 30115810117 in words is "thirty billion, one hundred fifteen million, eight hundred ten thousand, one hundred seventeen".