23105117 has 6 divisors (see below), whose sum is σ = 26877438. Its totient is φ = 19804344.

The previous prime is 23105113. The next prime is 23105119. The reversal of 23105117 is 71150132.

It can be written as a sum of positive squares in only one way, i.e., 11909401 + 11195716 = 3451^2 + 3346^2 .

It is not a de Polignac number, because 23105117 - 2² = 23105113 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23105113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 235718 + ... + 235815.

It is an arithmetic number, because the mean of its divisors is an integer number (4479573).

Almost surely, 2^23105117 is an apocalyptic number.

It is an amenable number.

23105117 is a deficient number, since it is larger than the sum of its proper divisors (3772321).

23105117 is an equidigital number, since it uses as much as digits as its factorization.

23105117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471547 (or 471540 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 23105117 is about 4806.7782349511. The cubic root of 23105117 is about 284.8192842234.

Adding to 23105117 its reverse (71150132), we get a palindrome (94255249).

The spelling of 23105117 in words is "twenty-three million, one hundred five thousand, one hundred seventeen".