12820244823 has 12 divisors (see below), whose sum is σ = 18741242520. Its totient is φ = 8443855536.

The previous prime is 12820244821. The next prime is 12820244863. The reversal of 12820244823 is 32844202821.

12820244823 is a `hidden beast` number, since 1 + 2 + 8 + 202 + 448 + 2 + 3 = 666.

It is not a de Polignac number, because 12820244823 - 2¹ = 12820244821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12820244821) 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 11 ways as a sum of consecutive naturals, for example, 8580408 + ... + 8581901.

It is an arithmetic number, because the mean of its divisors is an integer number (1561770210).

Almost surely, 2^12820244823 is an apocalyptic number.

12820244823 is a deficient number, since it is larger than the sum of its proper divisors (5920997697).

12820244823 is a wasteful number, since it uses less digits than its factorization.

12820244823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17162398 (or 17162395 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The spelling of 12820244823 in words is "twelve billion, eight hundred twenty million, two hundred forty-four thousand, eight hundred twenty-three".