206434103 has 2 divisors, whose sum is σ = 206434104. Its totient is φ = 206434102.

The previous prime is 206434091. The next prime is 206434127. The reversal of 206434103 is 301434602.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 206434103 - 2⁴ = 206434087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206434003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103217051 + 103217052.

It is an arithmetic number, because the mean of its divisors is an integer number (103217052).

Almost surely, 2^206434103 is an apocalyptic number.

206434103 is a deficient number, since it is larger than the sum of its proper divisors (1).

206434103 is an equidigital number, since it uses as much as digits as its factorization.

206434103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 206434103 is about 14367.8148303770. The cubic root of 206434103 is about 591.0086194862.

Adding to 206434103 its reverse (301434602), we get a palindrome (507868705).

The spelling of 206434103 in words is "two hundred six million, four hundred thirty-four thousand, one hundred three".