223430321 has 4 divisors (see below), whose sum is σ = 224910144. Its totient is φ = 221950500.

The previous prime is 223430293. The next prime is 223430323. The reversal of 223430321 is 123034322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 223430321 - 2²⁶ = 156321457 is a prime.

It is a super-2 number, since 2×223430321² = 99842216684326082, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 223430293 and 223430302.

It is not an unprimeable number, because it can be changed into a prime (223430323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739685 + ... + 739986.

It is an arithmetic number, because the mean of its divisors is an integer number (56227536).

Almost surely, 2^223430321 is an apocalyptic number.

It is an amenable number.

223430321 is a deficient number, since it is larger than the sum of its proper divisors (1479823).

223430321 is a wasteful number, since it uses less digits than its factorization.

223430321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479822.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 223430321 is about 14947.5857916922. The cubic root of 223430321 is about 606.8025117776.

Adding to 223430321 its reverse (123034322), we get a palindrome (346464643).

It can be divided in two parts, 22 and 3430321, that added together give a palindrome (3430343).

The spelling of 223430321 in words is "two hundred twenty-three million, four hundred thirty thousand, three hundred twenty-one".