223040243 has 2 divisors, whose sum is σ = 223040244. Its totient is φ = 223040242.

The previous prime is 223040227. The next prime is 223040263. The reversal of 223040243 is 342040322.

It is an a-pointer prime, because the next prime (223040263) can be obtained adding 223040243 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 223040243 - 2⁴ = 223040227 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (223040263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111520121 + 111520122.

It is an arithmetic number, because the mean of its divisors is an integer number (111520122).

Almost surely, 2^223040243 is an apocalyptic number.

223040243 is a deficient number, since it is larger than the sum of its proper divisors (1).

223040243 is an equidigital number, since it uses as much as digits as its factorization.

223040243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 223040243 is about 14934.5318975855. The cubic root of 223040243 is about 606.4491753826.

Adding to 223040243 its reverse (342040322), we get a palindrome (565080565).

The spelling of 223040243 in words is "two hundred twenty-three million, forty thousand, two hundred forty-three".