12943333334921 has 24 divisors (see below), whose sum is σ = 15778875756384. Its totient is φ = 10491640813440.

The previous prime is 12943333334917. The next prime is 12943333334927.

12943333334921 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12943333334921 - 2² = 12943333334917 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 12943333334921.

It is not an unprimeable number, because it can be changed into a prime (12943333334927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95799095 + ... + 95934108.

It is an arithmetic number, because the mean of its divisors is an integer number (657453156516).

Almost surely, 2^{12943333334921} is an apocalyptic number.

12943333334921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12943333334921 is a deficient number, since it is larger than the sum of its proper divisors (2835542421463).

12943333334921 is a wasteful number, since it uses less digits than its factorization.

12943333334921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191733269 (or 191733250 counting only the distinct ones).

The product of its digits is 3779136, while the sum is 50.

The spelling of 12943333334921 in words is "twelve trillion, nine hundred forty-three billion, three hundred thirty-three million, three hundred thirty-four thousand, nine hundred twenty-one".