223512313 has 2 divisors, whose sum is σ = 223512314. Its totient is φ = 223512312.

The previous prime is 223512281. The next prime is 223512319. The reversal of 223512313 is 313215322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221801449 + 1710864 = 14893^2 + 1308^2 .

It is a cyclic number.

It is not a de Polignac number, because 223512313 - 2⁵ = 223512281 is a prime.

It is not a weakly prime, because it can be changed into another prime (223512319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111756156 + 111756157.

It is an arithmetic number, because the mean of its divisors is an integer number (111756157).

Almost surely, 2^223512313 is an apocalyptic number.

It is an amenable number.

223512313 is a deficient number, since it is larger than the sum of its proper divisors (1).

223512313 is an equidigital number, since it uses as much as digits as its factorization.

223512313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 22.

The square root of 223512313 is about 14950.3281903776. The cubic root of 223512313 is about 606.8767286022.

Adding to 223512313 its reverse (313215322), we get a palindrome (536727635).

The spelling of 223512313 in words is "two hundred twenty-three million, five hundred twelve thousand, three hundred thirteen".