223331313 has 4 divisors (see below), whose sum is σ = 297775088. Its totient is φ = 148887540.

The previous prime is 223331287. The next prime is 223331323. The reversal of 223331313 is 313133322.

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 223331313 - 2⁶ = 223331249 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 223331313.

It is not an unprimeable number, because it can be changed into a prime (223331323) 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, 37221883 + ... + 37221888.

It is an arithmetic number, because the mean of its divisors is an integer number (74443772).

Almost surely, 2^223331313 is an apocalyptic number.

It is an amenable number.

223331313 is a deficient number, since it is larger than the sum of its proper divisors (74443775).

223331313 is an equidigital number, since it uses as much as digits as its factorization.

223331313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74443774.

The product of its digits is 972, while the sum is 21.

The square root of 223331313 is about 14944.2735855578. The cubic root of 223331313 is about 606.7128683500.

Adding to 223331313 its reverse (313133322), we get a palindrome (536464635).

The spelling of 223331313 in words is "two hundred twenty-three million, three hundred thirty-one thousand, three hundred thirteen".