206106203 has 2 divisors, whose sum is σ = 206106204. Its totient is φ = 206106202.

The previous prime is 206106101. The next prime is 206106209. The reversal of 206106203 is 302601602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 206106203 - 2²⁴ = 189328987 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (206106209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103053101 + 103053102.

It is an arithmetic number, because the mean of its divisors is an integer number (103053102).

Almost surely, 2^206106203 is an apocalyptic number.

206106203 is a deficient number, since it is larger than the sum of its proper divisors (1).

206106203 is an equidigital number, since it uses as much as digits as its factorization.

206106203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 206106203 is about 14356.3993744950. The cubic root of 206106203 is about 590.6955342281.

Adding to 206106203 its reverse (302601602), we get a palindrome (508707805).

The spelling of 206106203 in words is "two hundred six million, one hundred six thousand, two hundred three".