205923203 has 2 divisors, whose sum is σ = 205923204. Its totient is φ = 205923202.

The previous prime is 205923199. The next prime is 205923233. The reversal of 205923203 is 302329502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 205923203 - 2² = 205923199 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (205923233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102961601 + 102961602.

It is an arithmetic number, because the mean of its divisors is an integer number (102961602).

Almost surely, 2^205923203 is an apocalyptic number.

205923203 is a deficient number, since it is larger than the sum of its proper divisors (1).

205923203 is an equidigital number, since it uses as much as digits as its factorization.

205923203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 205923203 is about 14350.0244947526. The cubic root of 205923203 is about 590.5206578943.

The spelling of 205923203 in words is "two hundred five million, nine hundred twenty-three thousand, two hundred three".