23117022 has 16 divisors (see below), whose sum is σ = 51371280. Its totient is φ = 7705656.

The previous prime is 23117021. The next prime is 23117023. The reversal of 23117022 is 22071132.

It is an interprime number because it is at equal distance from previous prime (23117021) and next prime (23117023).

It is a super-2 number, since 2×23117022² = 1068793412296968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23116986 and 23117004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23117021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213993 + ... + 214100.

It is an arithmetic number, because the mean of its divisors is an integer number (3210705).

Almost surely, 2^23117022 is an apocalyptic number.

23117022 is an abundant number, since it is smaller than the sum of its proper divisors (28254258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23117022 is a wasteful number, since it uses less digits than its factorization.

23117022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428104 (or 428098 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 23117022 is about 4808.0164309203. The cubic root of 23117022 is about 284.8681938997.

Adding to 23117022 its reverse (22071132), we get a palindrome (45188154).

The spelling of 23117022 in words is "twenty-three million, one hundred seventeen thousand, twenty-two".