223321023 has 16 divisors (see below), whose sum is σ = 331165440. Its totient is φ = 148736952.

The previous prime is 223321019. The next prime is 223321037. The reversal of 223321023 is 320123322.

It is a happy number.

It is not a de Polignac number, because 223321023 - 2² = 223321019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 223320987 and 223321005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223321093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29640 + ... + 36402.

It is an arithmetic number, because the mean of its divisors is an integer number (20697840).

Almost surely, 2^223321023 is an apocalyptic number.

223321023 is a deficient number, since it is larger than the sum of its proper divisors (107844417).

223321023 is a wasteful number, since it uses less digits than its factorization.

223321023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7995 (or 7989 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 223321023 is about 14943.9293025630. The cubic root of 223321023 is about 606.7035500996.

Adding to 223321023 its reverse (320123322), we get a palindrome (543444345).

The spelling of 223321023 in words is "two hundred twenty-three million, three hundred twenty-one thousand, twenty-three".