12311221123333 has 4 divisors (see below), whose sum is σ = 13430423043648. Its totient is φ = 11192019203020.

The previous prime is 12311221123307. The next prime is 12311221123363. The reversal of 12311221123333 is 33332112211321.

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 12311221123333 - 2²⁹ = 12310684252421 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 (12311221123363) 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 3 ways as a sum of consecutive naturals, for example, 559600960141 + ... + 559600960162.

It is an arithmetic number, because the mean of its divisors is an integer number (3357605760912).

Almost surely, 2^{12311221123333} is an apocalyptic number.

It is an amenable number.

12311221123333 is a deficient number, since it is larger than the sum of its proper divisors (1119201920315).

12311221123333 is a wasteful number, since it uses less digits than its factorization.

12311221123333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119201920314.

The product of its digits is 3888, while the sum is 28.

Adding to 12311221123333 its reverse (33332112211321), we get a palindrome (45643333334654).

The spelling of 12311221123333 in words is "twelve trillion, three hundred eleven billion, two hundred twenty-one million, one hundred twenty-three thousand, three hundred thirty-three".