223042423 has 4 divisors (see below), whose sum is σ = 223156000. Its totient is φ = 222928848.

The previous prime is 223042381. The next prime is 223042433. The reversal of 223042423 is 324240322.

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-223042423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223042394 and 223042403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223042433) 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, 53790 + ... + 57787.

It is an arithmetic number, because the mean of its divisors is an integer number (55789000).

Almost surely, 2^223042423 is an apocalyptic number.

223042423 is a deficient number, since it is larger than the sum of its proper divisors (113577).

223042423 is a wasteful number, since it uses less digits than its factorization.

223042423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113576.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 223042423 is about 14934.6048826208. The cubic root of 223042423 is about 606.4511511918.

Adding to 223042423 its reverse (324240322), we get a palindrome (547282745).

The spelling of 223042423 in words is "two hundred twenty-three million, forty-two thousand, four hundred twenty-three".