17120051171 has 4 divisors (see below), whose sum is σ = 17120469000. Its totient is φ = 17119633344.

The previous prime is 17120051159. The next prime is 17120051209. The reversal of 17120051171 is 17115002171.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17120051171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 17120051171.

It is not an unprimeable number, because it can be changed into a prime (17120051131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139841 + ... + 231938.

It is an arithmetic number, because the mean of its divisors is an integer number (4280117250).

Almost surely, 2^17120051171 is an apocalyptic number.

17120051171 is a deficient number, since it is larger than the sum of its proper divisors (417829).

17120051171 is an equidigital number, since it uses as much as digits as its factorization.

17120051171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417828.

The product of its (nonzero) digits is 490, while the sum is 26.

The spelling of 17120051171 in words is "seventeen billion, one hundred twenty million, fifty-one thousand, one hundred seventy-one".