20336721883 has 2 divisors, whose sum is σ = 20336721884. Its totient is φ = 20336721882.

The previous prime is 20336721871. The next prime is 20336721893. The reversal of 20336721883 is 38812763302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20336721883 is a prime.

It is not a weakly prime, because it can be changed into another prime (20336721893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10168360941 + 10168360942.

It is an arithmetic number, because the mean of its divisors is an integer number (10168360942).

Almost surely, 2^20336721883 is an apocalyptic number.

20336721883 is a deficient number, since it is larger than the sum of its proper divisors (1).

20336721883 is an equidigital number, since it uses as much as digits as its factorization.

20336721883 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 20336721883 in words is "twenty billion, three hundred thirty-six million, seven hundred twenty-one thousand, eight hundred eighty-three".