20081352271 has 4 divisors (see below), whose sum is σ = 20116645200. Its totient is φ = 20046059344.

The previous prime is 20081352217. The next prime is 20081352337. The reversal of 20081352271 is 17225318002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17225318002 = 2 ⋅8612659001.

It is a cyclic number.

It is not a de Polignac number, because 20081352271 - 2¹⁹ = 20080827983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20081362271) 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 in 3 ways as a sum of consecutive naturals, for example, 17645611 + ... + 17646748.

It is an arithmetic number, because the mean of its divisors is an integer number (5029161300).

Almost surely, 2^20081352271 is an apocalyptic number.

20081352271 is a deficient number, since it is larger than the sum of its proper divisors (35292929).

20081352271 is an equidigital number, since it uses as much as digits as its factorization.

20081352271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35292928.

The product of its (nonzero) digits is 6720, while the sum is 31.

The spelling of 20081352271 in words is "twenty billion, eighty-one million, three hundred fifty-two thousand, two hundred seventy-one".