205203223 has 4 divisors (see below), whose sum is σ = 205390368. Its totient is φ = 205016080.

The previous prime is 205203191. The next prime is 205203253. The reversal of 205203223 is 322302502.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322302502 = 2 ⋅161151251.

It is a cyclic number.

It is not a de Polignac number, because 205203223 - 2⁵ = 205203191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205203223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205203253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91918 + ... + 94123.

It is an arithmetic number, because the mean of its divisors is an integer number (51347592).

Almost surely, 2^205203223 is an apocalyptic number.

205203223 is a deficient number, since it is larger than the sum of its proper divisors (187145).

205203223 is a wasteful number, since it uses less digits than its factorization.

205203223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187144.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 205203223 is about 14324.9161603131. The cubic root of 205203223 is about 589.8316315512.

Adding to 205203223 its reverse (322302502), we get a palindrome (527505725).

The spelling of 205203223 in words is "two hundred five million, two hundred three thousand, two hundred twenty-three".