20080336321 has 4 divisors (see below), whose sum is σ = 20264559700. Its totient is φ = 19896112944.

The previous prime is 20080336271. The next prime is 20080336337. The reversal of 20080336321 is 12363308002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12363308002 = 2 ⋅6181654001.

It can be written as a sum of positive squares in 2 ways, for example, as 13366828225 + 6713508096 = 115615^2 + 81936^2 .

It is a cyclic number.

It is not a de Polignac number, because 20080336321 - 2¹¹ = 20080334273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20080336321.

It is not an unprimeable number, because it can be changed into a prime (20080336721) 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 in 3 ways as a sum of consecutive naturals, for example, 92111526 + ... + 92111743.

It is an arithmetic number, because the mean of its divisors is an integer number (5066139925).

Almost surely, 2^20080336321 is an apocalyptic number.

It is an amenable number.

20080336321 is a deficient number, since it is larger than the sum of its proper divisors (184223379).

20080336321 is a wasteful number, since it uses less digits than its factorization.

20080336321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184223378.

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 20080336321 in words is "twenty billion, eighty million, three hundred thirty-six thousand, three hundred twenty-one".