22123477432123 has 4 divisors (see below), whose sum is σ = 23424858457560. Its totient is φ = 20822096406688.

The previous prime is 22123477432081. The next prime is 22123477432163. The reversal of 22123477432123 is 32123477432122.

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

It is a cyclic number.

It is not a de Polignac number, because 22123477432123 - 2⁹ = 22123477431611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22123477432123.

It is not an unprimeable number, because it can be changed into a prime (22123477432163) 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, 650690512693 + ... + 650690512726.

It is an arithmetic number, because the mean of its divisors is an integer number (5856214614390).

Almost surely, 2^{22123477432123} is an apocalyptic number.

22123477432123 is a deficient number, since it is larger than the sum of its proper divisors (1301381025437).

22123477432123 is a wasteful number, since it uses less digits than its factorization.

22123477432123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301381025436.

The product of its digits is 677376, while the sum is 43.

Subtracting 22123477432123 from its reverse (32123477432122), we obtain a palindrome (9999999999999).

The spelling of 22123477432123 in words is "twenty-two trillion, one hundred twenty-three billion, four hundred seventy-seven million, four hundred thirty-two thousand, one hundred twenty-three".