223043313 has 4 divisors (see below), whose sum is σ = 297391088. Its totient is φ = 148695540.

The previous prime is 223043309. The next prime is 223043333. The reversal of 223043313 is 313340322.

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 not a de Polignac number, because 223043313 - 2² = 223043309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223043313.

It is not an unprimeable number, because it can be changed into a prime (223043333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37173883 + ... + 37173888.

It is an arithmetic number, because the mean of its divisors is an integer number (74347772).

Almost surely, 2^223043313 is an apocalyptic number.

It is an amenable number.

223043313 is a deficient number, since it is larger than the sum of its proper divisors (74347775).

223043313 is an equidigital number, since it uses as much as digits as its factorization.

223043313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74347774.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 223043313 is about 14934.6346791611. The cubic root of 223043313 is about 606.4519578258.

Adding to 223043313 its reverse (313340322), we get a palindrome (536383635).

The spelling of 223043313 in words is "two hundred twenty-three million, forty-three thousand, three hundred thirteen".