223432423 has 2 divisors, whose sum is σ = 223432424. Its totient is φ = 223432422.

The previous prime is 223432403. The next prime is 223432427. The reversal of 223432423 is 324234322.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223432423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223432427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111716211 + 111716212.

It is an arithmetic number, because the mean of its divisors is an integer number (111716212).

Almost surely, 2^223432423 is an apocalyptic number.

223432423 is a deficient number, since it is larger than the sum of its proper divisors (1).

223432423 is an equidigital number, since it uses as much as digits as its factorization.

223432423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 25.

The square root of 223432423 is about 14947.6561038846. The cubic root of 223432423 is about 606.8044146749.

Adding to 223432423 its reverse (324234322), we get a palindrome (547666745).

The spelling of 223432423 in words is "two hundred twenty-three million, four hundred thirty-two thousand, four hundred twenty-three".