223421423 has 8 divisors (see below), whose sum is σ = 236764080. Its totient is φ = 210454720.

The previous prime is 223421413. The next prime is 223421431. The reversal of 223421423 is 324124322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223421423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223421413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92765 + ... + 95142.

It is an arithmetic number, because the mean of its divisors is an integer number (29595510).

Almost surely, 2^223421423 is an apocalyptic number.

223421423 is a deficient number, since it is larger than the sum of its proper divisors (13342657).

223421423 is a wasteful number, since it uses less digits than its factorization.

223421423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187977.

The product of its digits is 2304, while the sum is 23.

The square root of 223421423 is about 14947.2881486911. The cubic root of 223421423 is about 606.7944564692.

Adding to 223421423 its reverse (324124322), we get a palindrome (547545745).

The spelling of 223421423 in words is "two hundred twenty-three million, four hundred twenty-one thousand, four hundred twenty-three".