12820046011 has 4 divisors (see below), whose sum is σ = 12820275000. Its totient is φ = 12819817024.

The previous prime is 12820045993. The next prime is 12820046021. The reversal of 12820046011 is 11064002821.

12820046011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12820046011 - 2²⁷ = 12685828283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12820046021) 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, 31755 + ... + 163243.

It is an arithmetic number, because the mean of its divisors is an integer number (3205068750).

Almost surely, 2^12820046011 is an apocalyptic number.

12820046011 is a deficient number, since it is larger than the sum of its proper divisors (228989).

12820046011 is an equidigital number, since it uses as much as digits as its factorization.

12820046011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228988.

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 12820046011 its reverse (11064002821), we get a palindrome (23884048832).

The spelling of 12820046011 in words is "twelve billion, eight hundred twenty million, forty-six thousand, eleven".