223985449243 has 2 divisors, whose sum is σ = 223985449244. Its totient is φ = 223985449242.

The previous prime is 223985449213. The next prime is 223985449327. The reversal of 223985449243 is 342944589322.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223985449243 is a prime.

It is not a weakly prime, because it can be changed into another prime (223985449213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111992724621 + 111992724622.

It is an arithmetic number, because the mean of its divisors is an integer number (111992724622).

Almost surely, 2^223985449243 is an apocalyptic number.

223985449243 is a deficient number, since it is larger than the sum of its proper divisors (1).

223985449243 is an equidigital number, since it uses as much as digits as its factorization.

223985449243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14929920, while the sum is 55.

The spelling of 223985449243 in words is "two hundred twenty-three billion, nine hundred eighty-five million, four hundred forty-nine thousand, two hundred forty-three".