223423523 has 2 divisors, whose sum is σ = 223423524. Its totient is φ = 223423522.

The previous prime is 223423507. The next prime is 223423547. The reversal of 223423523 is 325324322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 223423523 - 2⁴ = 223423507 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 223423492 and 223423501.

It is not a weakly prime, because it can be changed into another prime (223420523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111711761 + 111711762.

It is an arithmetic number, because the mean of its divisors is an integer number (111711762).

Almost surely, 2^223423523 is an apocalyptic number.

223423523 is a deficient number, since it is larger than the sum of its proper divisors (1).

223423523 is an equidigital number, since it uses as much as digits as its factorization.

223423523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 26.

The square root of 223423523 is about 14947.3583953821. The cubic root of 223423523 is about 606.7963576064.

Adding to 223423523 its reverse (325324322), we get a palindrome (548747845).

The spelling of 223423523 in words is "two hundred twenty-three million, four hundred twenty-three thousand, five hundred twenty-three".