23117171 has 24 divisors (see below), whose sum is σ = 29685600. Its totient is φ = 17981040.

The previous prime is 23117141. The next prime is 23117179. The reversal of 23117171 is 17171132.

It is a de Polignac number, because none of the positive numbers 2^k-23117171 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23117179) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41225 + ... + 41781.

It is an arithmetic number, because the mean of its divisors is an integer number (1236900).

Almost surely, 2^23117171 is an apocalyptic number.

23117171 is a deficient number, since it is larger than the sum of its proper divisors (6568429).

23117171 is an equidigital number, since it uses as much as digits as its factorization.

23117171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600 (or 575 counting only the distinct ones).

The product of its digits is 294, while the sum is 23.

The square root of 23117171 is about 4808.0319258507. The cubic root of 23117171 is about 284.8688059345.

The spelling of 23117171 in words is "twenty-three million, one hundred seventeen thousand, one hundred seventy-one".