223312305 has 16 divisors (see below), whose sum is σ = 359118144. Its totient is φ = 118493760.

The previous prime is 223312259. The next prime is 223312307. The reversal of 223312305 is 503213322.

It is not a de Polignac number, because 223312305 - 2⁶ = 223312241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (223312307) 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 15 ways as a sum of consecutive naturals, for example, 34831 + ... + 40740.

It is an arithmetic number, because the mean of its divisors is an integer number (22444884).

Almost surely, 2^223312305 is an apocalyptic number.

It is an amenable number.

223312305 is a deficient number, since it is larger than the sum of its proper divisors (135805839).

223312305 is a wasteful number, since it uses less digits than its factorization.

223312305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75776.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 223312305 is about 14943.6376093641. The cubic root of 223312305 is about 606.6956551713.

Adding to 223312305 its reverse (503213322), we get a palindrome (726525627).

The spelling of 223312305 in words is "two hundred twenty-three million, three hundred twelve thousand, three hundred five".