20304638099 has 2 divisors, whose sum is σ = 20304638100. Its totient is φ = 20304638098.

The previous prime is 20304638093. The next prime is 20304638197. The reversal of 20304638099 is 99083640302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20304638099 is a prime.

It is not a weakly prime, because it can be changed into another prime (20304638093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10152319049 + 10152319050.

It is an arithmetic number, because the mean of its divisors is an integer number (10152319050).

Almost surely, 2^20304638099 is an apocalyptic number.

20304638099 is a deficient number, since it is larger than the sum of its proper divisors (1).

20304638099 is an equidigital number, since it uses as much as digits as its factorization.

20304638099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 44.

The spelling of 20304638099 in words is "twenty billion, three hundred four million, six hundred thirty-eight thousand, ninety-nine".