10204430209 has 2 divisors, whose sum is σ = 10204430210. Its totient is φ = 10204430208.

The previous prime is 10204430153. The next prime is 10204430219. The reversal of 10204430209 is 90203440201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7228400400 + 2976029809 = 85020^2 + 54553^2 .

It is a cyclic number.

It is not a de Polignac number, because 10204430209 - 2¹¹ = 10204428161 is a prime.

It is not a weakly prime, because it can be changed into another prime (10204430219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5102215104 + 5102215105.

It is an arithmetic number, because the mean of its divisors is an integer number (5102215105).

Almost surely, 2^10204430209 is an apocalyptic number.

It is an amenable number.

10204430209 is a deficient number, since it is larger than the sum of its proper divisors (1).

10204430209 is an equidigital number, since it uses as much as digits as its factorization.

10204430209 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 25.

The spelling of 10204430209 in words is "ten billion, two hundred four million, four hundred thirty thousand, two hundred nine".