12111321133 has 4 divisors (see below), whose sum is σ = 12392979808. Its totient is φ = 11829662460.

The previous prime is 12111321121. The next prime is 12111321151. The reversal of 12111321133 is 33112311121.

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: 33112311121 = 43 ⋅770053747.

It is a cyclic number.

It is not a de Polignac number, because 12111321133 - 2⁹ = 12111320621 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 12111321133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111321113) 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, 140829273 + ... + 140829358.

It is an arithmetic number, because the mean of its divisors is an integer number (3098244952).

Almost surely, 2^12111321133 is an apocalyptic number.

It is an amenable number.

12111321133 is a deficient number, since it is larger than the sum of its proper divisors (281658675).

12111321133 is an equidigital number, since it uses as much as digits as its factorization.

12111321133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281658674.

The product of its digits is 108, while the sum is 19.

Adding to 12111321133 its reverse (33112311121), we get a palindrome (45223632254).

The spelling of 12111321133 in words is "twelve billion, one hundred eleven million, three hundred twenty-one thousand, one hundred thirty-three".