23117 has 2 divisors, whose sum is σ = 23118. Its totient is φ = 23116.

The previous prime is 23099. The next prime is 23131. The reversal of 23117 is 71132.

Added to its reverse (71132) it gives a square (94249 = 307²).

It is an a-pointer prime, because the next prime (23131) can be obtained adding 23117 to its sum of digits (14).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11881 + 11236 = 109^2 + 106^2 .

It is a cyclic number.

It is not a de Polignac number, because 23117 - 2⁶ = 23053 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11558 + 11559.

It is an arithmetic number, because the mean of its divisors is an integer number (11559).

2²³¹¹⁷ is an apocalyptic number.

It is an amenable number.

23117 is a deficient number, since it is larger than the sum of its proper divisors (1).

23117 is an equidigital number, since it uses as much as digits as its factorization.

23117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42, while the sum is 14.

The square root of 23117 is about 152.0427571442. The cubic root of 23117 is about 28.4868103532.

Adding to 23117 its reverse (71132), we get a palindrome (94249).

The spelling of 23117 in words is "twenty-three thousand, one hundred seventeen", and thus it is an iban number.