30051720117 has 8 divisors (see below), whose sum is σ = 44521066880. Its totient is φ = 20034480060.

The previous prime is 30051720113. The next prime is 30051720163. The reversal of 30051720117 is 71102715003.

It is a happy number.

30051720117 is a `hidden beast` number, since 30 + 0 + 517 + 2 + 0 + 117 = 666.

It is not a de Polignac number, because 30051720117 - 2² = 30051720113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1113026671 = 30051720117 / (3 + 0 + 0 + 5 + 1 + 7 + 2 + 0 + 1 + 1 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30051720113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556513309 + ... + 556513362.

It is an arithmetic number, because the mean of its divisors is an integer number (5565133360).

Almost surely, 2^30051720117 is an apocalyptic number.

It is an amenable number.

30051720117 is a deficient number, since it is larger than the sum of its proper divisors (14469346763).

30051720117 is a wasteful number, since it uses less digits than its factorization.

30051720117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113026680 (or 1113026674 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 27.

The spelling of 30051720117 in words is "thirty billion, fifty-one million, seven hundred twenty thousand, one hundred seventeen".