20385959603 has 2 divisors, whose sum is σ = 20385959604. Its totient is φ = 20385959602.

The previous prime is 20385959549. The next prime is 20385959611. The reversal of 20385959603 is 30695958302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20385959603 - 2¹⁴ = 20385943219 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (20385959623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10192979801 + 10192979802.

It is an arithmetic number, because the mean of its divisors is an integer number (10192979802).

Almost surely, 2^20385959603 is an apocalyptic number.

20385959603 is a deficient number, since it is larger than the sum of its proper divisors (1).

20385959603 is an equidigital number, since it uses as much as digits as its factorization.

20385959603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1749600, while the sum is 50.

The spelling of 20385959603 in words is "twenty billion, three hundred eighty-five million, nine hundred fifty-nine thousand, six hundred three".