23122171 has 4 divisors (see below), whose sum is σ = 23210352. Its totient is φ = 23033992.

The previous prime is 23122147. The next prime is 23122213. The reversal of 23122171 is 17122132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23122171 - 2⁵ = 23122139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23122871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43696 + ... + 44221.

It is an arithmetic number, because the mean of its divisors is an integer number (5802588).

Almost surely, 2^23122171 is an apocalyptic number.

23122171 is a deficient number, since it is larger than the sum of its proper divisors (88181).

23122171 is an equidigital number, since it uses as much as digits as its factorization.

23122171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88180.

The product of its digits is 168, while the sum is 19.

The square root of 23122171 is about 4808.5518610076. The cubic root of 23122171 is about 284.8893424923.

The spelling of 23122171 in words is "twenty-three million, one hundred twenty-two thousand, one hundred seventy-one".