20304340003 has 2 divisors, whose sum is σ = 20304340004. Its totient is φ = 20304340002.

The previous prime is 20304339977. The next prime is 20304340033. The reversal of 20304340003 is 30004340302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20304340003 is a prime.

It is not a weakly prime, because it can be changed into another prime (20304340033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10152170001 + 10152170002.

It is an arithmetic number, because the mean of its divisors is an integer number (10152170002).

Almost surely, 2^20304340003 is an apocalyptic number.

20304340003 is a deficient number, since it is larger than the sum of its proper divisors (1).

20304340003 is an equidigital number, since it uses as much as digits as its factorization.

20304340003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 19.

Adding to 20304340003 its reverse (30004340302), we get a palindrome (50308680305).

The spelling of 20304340003 in words is "twenty billion, three hundred four million, three hundred forty thousand, three".