205423020359 has 2 divisors, whose sum is σ = 205423020360. Its totient is φ = 205423020358.

The previous prime is 205423020331. The next prime is 205423020401. The reversal of 205423020359 is 953020324502.

205423020359 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 205423020359 - 2²⁴ = 205406243143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205423020259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102711510179 + 102711510180.

It is an arithmetic number, because the mean of its divisors is an integer number (102711510180).

Almost surely, 2^205423020359 is an apocalyptic number.

205423020359 is a deficient number, since it is larger than the sum of its proper divisors (1).

205423020359 is an equidigital number, since it uses as much as digits as its factorization.

205423020359 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 205423020359 in words is "two hundred five billion, four hundred twenty-three million, twenty thousand, three hundred fifty-nine".