12311333321 has 4 divisors (see below), whose sum is σ = 14070095232. Its totient is φ = 10552571412.

The previous prime is 12311333299. The next prime is 12311333323. The reversal of 12311333321 is 12333311321.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12333311321 = 23 ⋅536230927.

It is a cyclic number.

It is not a de Polignac number, because 12311333321 - 2¹⁴ = 12311316937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12311333323) 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, 879380945 + ... + 879380958.

It is an arithmetic number, because the mean of its divisors is an integer number (3517523808).

Almost surely, 2^12311333321 is an apocalyptic number.

It is an amenable number.

12311333321 is a deficient number, since it is larger than the sum of its proper divisors (1758761911).

12311333321 is an equidigital number, since it uses as much as digits as its factorization.

12311333321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758761910.

The product of its digits is 972, while the sum is 23.

Adding to 12311333321 its reverse (12333311321), we get a palindrome (24644644642).

The spelling of 12311333321 in words is "twelve billion, three hundred eleven million, three hundred thirty-three thousand, three hundred twenty-one".