17121105327 has 4 divisors (see below), whose sum is σ = 22828140440. Its totient is φ = 11414070216.

The previous prime is 17121105233. The next prime is 17121105329. The reversal of 17121105327 is 72350112171.

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

It is not a de Polignac number, because 17121105327 - 2¹⁵ = 17121072559 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17121105294 and 17121105303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17121105329) 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, 2853517552 + ... + 2853517557.

It is an arithmetic number, because the mean of its divisors is an integer number (5707035110).

Almost surely, 2^17121105327 is an apocalyptic number.

17121105327 is a deficient number, since it is larger than the sum of its proper divisors (5707035113).

17121105327 is an equidigital number, since it uses as much as digits as its factorization.

17121105327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5707035112.

The product of its (nonzero) digits is 2940, while the sum is 30.

Adding to 17121105327 its reverse (72350112171), we get a palindrome (89471217498).

The spelling of 17121105327 in words is "seventeen billion, one hundred twenty-one million, one hundred five thousand, three hundred twenty-seven".