205205323 has 2 divisors, whose sum is σ = 205205324. Its totient is φ = 205205322.

The previous prime is 205205303. The next prime is 205205383. The reversal of 205205323 is 323502502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 205205323 - 2⁵ = 205205291 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 205205294 and 205205303.

It is not a weakly prime, because it can be changed into another prime (205205303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102602661 + 102602662.

It is an arithmetic number, because the mean of its divisors is an integer number (102602662).

Almost surely, 2^205205323 is an apocalyptic number.

205205323 is a deficient number, since it is larger than the sum of its proper divisors (1).

205205323 is an equidigital number, since it uses as much as digits as its factorization.

205205323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 205205323 is about 14324.9894589839. The cubic root of 205205323 is about 589.8336436090.

Adding to 205205323 its reverse (323502502), we get a palindrome (528707825).

The spelling of 205205323 in words is "two hundred five million, two hundred five thousand, three hundred twenty-three".