205023323 has 4 divisors (see below), whose sum is σ = 205355160. Its totient is φ = 204691488.

The previous prime is 205023307. The next prime is 205023341. The reversal of 205023323 is 323320502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 205023323 - 2⁴ = 205023307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205023295 and 205023304.

It is not an unprimeable number, because it can be changed into a prime (205023023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164990 + ... + 166227.

It is an arithmetic number, because the mean of its divisors is an integer number (51338790).

Almost surely, 2^205023323 is an apocalyptic number.

205023323 is a deficient number, since it is larger than the sum of its proper divisors (331837).

205023323 is an equidigital number, since it uses as much as digits as its factorization.

205023323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331836.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 205023323 is about 14318.6355146012. The cubic root of 205023323 is about 589.6592142878.

Adding to 205023323 its reverse (323320502), we get a palindrome (528343825).

The spelling of 205023323 in words is "two hundred five million, twenty-three thousand, three hundred twenty-three".