12311844811321 has 4 divisors (see below), whose sum is σ = 13431103430544. Its totient is φ = 11192586192100.

The previous prime is 12311844811283. The next prime is 12311844811333.

It is a happy number.

12311844811321 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12311844811321 - 2³³ = 12303254876729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12311844818321) 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, 559629309595 + ... + 559629309616.

It is an arithmetic number, because the mean of its divisors is an integer number (3357775857636).

Almost surely, 2^{12311844811321} is an apocalyptic number.

12311844811321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12311844811321 is a deficient number, since it is larger than the sum of its proper divisors (1119258619223).

12311844811321 is a wasteful number, since it uses less digits than its factorization.

12311844811321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119258619222.

The product of its digits is 36864, while the sum is 40.

The spelling of 12311844811321 in words is "twelve trillion, three hundred eleven billion, eight hundred forty-four million, eight hundred eleven thousand, three hundred twenty-one".