223245311 has 2 divisors, whose sum is σ = 223245312. Its totient is φ = 223245310.

The previous prime is 223245301. The next prime is 223245317. The reversal of 223245311 is 113542322.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223245311 is a prime.

It is a super-3 number, since 3×223245311³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223245317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111622655 + 111622656.

It is an arithmetic number, because the mean of its divisors is an integer number (111622656).

Almost surely, 2^223245311 is an apocalyptic number.

223245311 is a deficient number, since it is larger than the sum of its proper divisors (1).

223245311 is an equidigital number, since it uses as much as digits as its factorization.

223245311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 23.

The square root of 223245311 is about 14941.3958852578. The cubic root of 223245311 is about 606.6349792584.

Adding to 223245311 its reverse (113542322), we get a palindrome (336787633).

The spelling of 223245311 in words is "two hundred twenty-three million, two hundred forty-five thousand, three hundred eleven".