22123143 has 24 divisors (see below), whose sum is σ = 37783200. Its totient is φ = 12204864.

The previous prime is 22123133. The next prime is 22123169. The reversal of 22123143 is 34132122.

It is not a de Polignac number, because 22123143 - 2¹² = 22119047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4228 + ... + 7881.

It is an arithmetic number, because the mean of its divisors is an integer number (1574300).

Almost surely, 2^22123143 is an apocalyptic number.

22123143 is a deficient number, since it is larger than the sum of its proper divisors (15660057).

22123143 is a wasteful number, since it uses less digits than its factorization.

22123143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12151 (or 12148 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 22123143 is about 4703.5245295417. The cubic root of 22123143 is about 280.7257659832.

Adding to 22123143 its reverse (34132122), we get a palindrome (56255265).

The spelling of 22123143 in words is "twenty-two million, one hundred twenty-three thousand, one hundred forty-three".