22123002123 has 24 divisors (see below), whose sum is σ = 33165398448. Its totient is φ = 14736911904.

The previous prime is 22123002113. The next prime is 22123002137. The reversal of 22123002123 is 32120032122.

22123002123 is a `hidden beast` number, since 221 + 230 + 0 + 212 + 3 = 666.

It is not a de Polignac number, because 22123002123 - 2¹⁷ = 22122871051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22123002096 and 22123002105.

It is not an unprimeable number, because it can be changed into a prime (22123002113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 274665 + ... + 345957.

It is an arithmetic number, because the mean of its divisors is an integer number (1381891602).

Almost surely, 2^22123002123 is an apocalyptic number.

22123002123 is a deficient number, since it is larger than the sum of its proper divisors (11042396325).

22123002123 is an equidigital number, since it uses as much as digits as its factorization.

22123002123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72585 (or 72573 counting only the distinct ones).

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

Adding to 22123002123 its reverse (32120032122), we get a palindrome (54243034245).

The spelling of 22123002123 in words is "twenty-two billion, one hundred twenty-three million, two thousand, one hundred twenty-three".