22102003123 has 4 divisors (see below), whose sum is σ = 22167588040. Its totient is φ = 22036418208.

The previous prime is 22102003117. The next prime is 22102003177. The reversal of 22102003123 is 32130020122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22102003123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22102003097 and 22102003106.

It is not an unprimeable number, because it can be changed into a prime (22102003103) 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, 32791953 + ... + 32792626.

It is an arithmetic number, because the mean of its divisors is an integer number (5541897010).

Almost surely, 2^22102003123 is an apocalyptic number.

22102003123 is a deficient number, since it is larger than the sum of its proper divisors (65584917).

22102003123 is an equidigital number, since it uses as much as digits as its factorization.

22102003123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65584916.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22102003123 its reverse (32130020122), we get a palindrome (54232023245).

The spelling of 22102003123 in words is "twenty-two billion, one hundred two million, three thousand, one hundred twenty-three".