22123 has 2 divisors, whose sum is σ = 22124. Its totient is φ = 22122.

The previous prime is 22111. The next prime is 22129. The reversal of 22123 is 32122.

Adding to 22123 its reverse (32122), we get a palindrome (54245).

Subtracting 22123 from its reverse (32122), we obtain a palindrome (9999).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22123 - 2^{5} = 22091 is a prime.

It is a plaindrome in base 16.

It is a nialpdrome in base 9.

It is a zygodrome in base 9.

It is not a weakly prime, because it can be changed into another prime (22129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11061 + 11062.

It is an arithmetic number, because the mean of its divisors is an integer number (11062).

2^{22123} is an apocalyptic number.

22123 is a deficient number, since it is larger than the sum of its proper divisors (1).

22123 is an equidigital number, since it uses as much as digits as its factorization.

22123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24, while the sum is 10.

The square root of 22123 is about 148.7380247280. The cubic root of 22123 is about 28.0725161128.

The spelling of 22123 in words is "twenty-two thousand, one hundred twenty-three", and thus it is an iban number.

• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.052 sec. • engine limits •