20904703199 has 2 divisors, whose sum is σ = 20904703200. Its totient is φ = 20904703198.

The previous prime is 20904703117. The next prime is 20904703213. The reversal of 20904703199 is 99130740902.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20904703199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20904703109) 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, 10452351599 + 10452351600.

It is an arithmetic number, because the mean of its divisors is an integer number (10452351600).

Almost surely, 2^20904703199 is an apocalyptic number.

20904703199 is a deficient number, since it is larger than the sum of its proper divisors (1).

20904703199 is an equidigital number, since it uses as much as digits as its factorization.

20904703199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 44.

The spelling of 20904703199 in words is "twenty billion, nine hundred four million, seven hundred three thousand, one hundred ninety-nine".