223312241 has 2 divisors, whose sum is σ = 223312242. Its totient is φ = 223312240.

The previous prime is 223312237. The next prime is 223312249. The reversal of 223312241 is 142213322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188265841 + 35046400 = 13721^2 + 5920^2 .

It is a cyclic number.

It is not a de Polignac number, because 223312241 - 2² = 223312237 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (223312249) 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 as a sum of consecutive naturals, namely, 111656120 + 111656121.

It is an arithmetic number, because the mean of its divisors is an integer number (111656121).

Almost surely, 2^223312241 is an apocalyptic number.

It is an amenable number.

223312241 is a deficient number, since it is larger than the sum of its proper divisors (1).

223312241 is an equidigital number, since it uses as much as digits as its factorization.

223312241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 20.

The square root of 223312241 is about 14943.6354679844. The cubic root of 223312241 is about 606.6955972128.

Adding to 223312241 its reverse (142213322), we get a palindrome (365525563).

The spelling of 223312241 in words is "two hundred twenty-three million, three hundred twelve thousand, two hundred forty-one".