223808311 has 2 divisors, whose sum is σ = 223808312. Its totient is φ = 223808310.

The previous prime is 223808293. The next prime is 223808317. The reversal of 223808311 is 113808322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223808311 - 2⁵ = 223808279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223808311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223808317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111904155 + 111904156.

It is an arithmetic number, because the mean of its divisors is an integer number (111904156).

Almost surely, 2^223808311 is an apocalyptic number.

223808311 is a deficient number, since it is larger than the sum of its proper divisors (1).

223808311 is an equidigital number, since it uses as much as digits as its factorization.

223808311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 223808311 is about 14960.2242964469. The cubic root of 223808311 is about 607.1445066305.

The spelling of 223808311 in words is "two hundred twenty-three million, eight hundred eight thousand, three hundred eleven".