205352223287 has 2 divisors, whose sum is σ = 205352223288. Its totient is φ = 205352223286.

The previous prime is 205352223247. The next prime is 205352223289. The reversal of 205352223287 is 782322253502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205352223287 - 2¹⁴ = 205352206903 is a prime.

It is a super-3 number, since 3×205352223287³ (a number of 35 digits) contains 333 as substring.

Together with 205352223289, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205352223289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102676111643 + 102676111644.

It is an arithmetic number, because the mean of its divisors is an integer number (102676111644).

Almost surely, 2^205352223287 is an apocalyptic number.

205352223287 is a deficient number, since it is larger than the sum of its proper divisors (1).

205352223287 is an equidigital number, since it uses as much as digits as its factorization.

205352223287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 403200, while the sum is 41.

Adding to 205352223287 its reverse (782322253502), we get a palindrome (987674476789).

The spelling of 205352223287 in words is "two hundred five billion, three hundred fifty-two million, two hundred twenty-three thousand, two hundred eighty-seven".