17120645371 has 4 divisors (see below), whose sum is σ = 17123024200. Its totient is φ = 17118266544.

The previous prime is 17120645359. The next prime is 17120645387. The reversal of 17120645371 is 17354602171.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17354602171 = 67 ⋅259023913.

It is a cyclic number.

It is not a de Polignac number, because 17120645371 - 2³³ = 8530710779 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 17120645371.

It is not an unprimeable number, because it can be changed into a prime (17120645341) 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, 1178586 + ... + 1193023.

It is an arithmetic number, because the mean of its divisors is an integer number (4280756050).

Almost surely, 2^17120645371 is an apocalyptic number.

17120645371 is a deficient number, since it is larger than the sum of its proper divisors (2378829).

17120645371 is an equidigital number, since it uses as much as digits as its factorization.

17120645371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2378828.

The product of its (nonzero) digits is 35280, while the sum is 37.

The spelling of 17120645371 in words is "seventeen billion, one hundred twenty million, six hundred forty-five thousand, three hundred seventy-one".