200203317409 has 2 divisors, whose sum is σ = 200203317410. Its totient is φ = 200203317408.

The previous prime is 200203317383. The next prime is 200203317421. The reversal of 200203317409 is 904713302002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192657789184 + 7545528225 = 438928^2 + 86865^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200203317409 is a prime.

It is not a weakly prime, because it can be changed into another prime (200203312409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100101658704 + 100101658705.

It is an arithmetic number, because the mean of its divisors is an integer number (100101658705).

Almost surely, 2^200203317409 is an apocalyptic number.

It is an amenable number.

200203317409 is a deficient number, since it is larger than the sum of its proper divisors (1).

200203317409 is an equidigital number, since it uses as much as digits as its factorization.

200203317409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The spelling of 200203317409 in words is "two hundred billion, two hundred three million, three hundred seventeen thousand, four hundred nine".