12820882271 has 4 divisors (see below), whose sum is σ = 12983172000. Its totient is φ = 12658592544.

The previous prime is 12820882253. The next prime is 12820882303. The reversal of 12820882271 is 17228802821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12820882271 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 (12820882201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81144746 + ... + 81144903.

It is an arithmetic number, because the mean of its divisors is an integer number (3245793000).

Almost surely, 2^12820882271 is an apocalyptic number.

12820882271 is a deficient number, since it is larger than the sum of its proper divisors (162289729).

12820882271 is an equidigital number, since it uses as much as digits as its factorization.

12820882271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162289728.

The product of its (nonzero) digits is 57344, while the sum is 41.

The spelling of 12820882271 in words is "twelve billion, eight hundred twenty million, eight hundred eighty-two thousand, two hundred seventy-one".