171117423 has 12 divisors (see below), whose sum is σ = 247305448. Its totient is φ = 114015600.

The previous prime is 171117421. The next prime is 171117433. The reversal of 171117423 is 324711171.

It is not a de Polignac number, because 171117423 - 2¹ = 171117421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171117421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17073 + ... + 25173.

Almost surely, 2^171117423 is an apocalyptic number.

171117423 is a deficient number, since it is larger than the sum of its proper divisors (76188025).

171117423 is a wasteful number, since it uses less digits than its factorization.

171117423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10454 (or 10451 counting only the distinct ones).

The product of its digits is 1176, while the sum is 27.

The square root of 171117423 is about 13081.1858407409. The cubic root of 171117423 is about 555.1769292248.

Adding to 171117423 its reverse (324711171), we get a palindrome (495828594).

The spelling of 171117423 in words is "one hundred seventy-one million, one hundred seventeen thousand, four hundred twenty-three".