12311333213 has 4 divisors (see below), whose sum is σ = 12313743360. Its totient is φ = 12308923068.

The previous prime is 12311333197. The next prime is 12311333231. The reversal of 12311333213 is 31233311321.

12311333213 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, 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: 31233311321 = 41 ⋅761788081.

It is a cyclic number.

It is not a de Polignac number, because 12311333213 - 2⁴ = 12311333197 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 (12311333263) 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, 1197395 + ... + 1207632.

It is an arithmetic number, because the mean of its divisors is an integer number (3078435840).

Almost surely, 2^12311333213 is an apocalyptic number.

It is an amenable number.

12311333213 is a deficient number, since it is larger than the sum of its proper divisors (2410147).

12311333213 is an equidigital number, since it uses as much as digits as its factorization.

12311333213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2410146.

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

Adding to 12311333213 its reverse (31233311321), we get a palindrome (43544644534).

The spelling of 12311333213 in words is "twelve billion, three hundred eleven million, three hundred thirty-three thousand, two hundred thirteen".