204210011 has 2 divisors, whose sum is σ = 204210012. Its totient is φ = 204210010.

The previous prime is 204209983. The next prime is 204210047. The reversal of 204210011 is 110012402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204210011 - 2⁶ = 204209947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204209974 and 204210001.

It is not a weakly prime, because it can be changed into another prime (204210091) 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, 102105005 + 102105006.

It is an arithmetic number, because the mean of its divisors is an integer number (102105006).

Almost surely, 2^204210011 is an apocalyptic number.

204210011 is a deficient number, since it is larger than the sum of its proper divisors (1).

204210011 is an equidigital number, since it uses as much as digits as its factorization.

204210011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 204210011 is about 14290.2068214564. The cubic root of 204210011 is about 588.8784698379.

Adding to 204210011 its reverse (110012402), we get a palindrome (314222413).

The spelling of 204210011 in words is "two hundred four million, two hundred ten thousand, eleven".