17031611123 has 4 divisors (see below), whose sum is σ = 17042211120. Its totient is φ = 17021011128.

The previous prime is 17031611111. The next prime is 17031611161. The reversal of 17031611123 is 32111613071.

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

It is a cyclic number.

It is not a de Polignac number, because 17031611123 - 2²⁰ = 17030562547 is a prime.

It is a super-2 number, since 2×17031611123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17031611092 and 17031611101.

It is not an unprimeable number, because it can be changed into a prime (17031616123) 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, 5297588 + ... + 5300801.

It is an arithmetic number, because the mean of its divisors is an integer number (4260552780).

Almost surely, 2^17031611123 is an apocalyptic number.

17031611123 is a deficient number, since it is larger than the sum of its proper divisors (10599997).

17031611123 is a wasteful number, since it uses less digits than its factorization.

17031611123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10599996.

The product of its (nonzero) digits is 756, while the sum is 26.

The spelling of 17031611123 in words is "seventeen billion, thirty-one million, six hundred eleven thousand, one hundred twenty-three".