22103123 has 4 divisors (see below), whose sum is σ = 25260720. Its totient is φ = 18945528.

The previous prime is 22103119. The next prime is 22103131. The reversal of 22103123 is 32130122.

It is a happy number.

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

It is not a de Polignac number, because 22103123 - 2² = 22103119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22103098 and 22103107.

It is not an unprimeable number, because it can be changed into a prime (22103623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1578788 + ... + 1578801.

It is an arithmetic number, because the mean of its divisors is an integer number (6315180).

Almost surely, 2^22103123 is an apocalyptic number.

22103123 is a deficient number, since it is larger than the sum of its proper divisors (3157597).

22103123 is an equidigital number, since it uses as much as digits as its factorization.

22103123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157596.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 22103123 is about 4701.3958565515. The cubic root of 22103123 is about 280.6410609307.

Adding to 22103123 its reverse (32130122), we get a palindrome (54233245).

The spelling of 22103123 in words is "twenty-two million, one hundred three thousand, one hundred twenty-three".