12256261133 has 4 divisors (see below), whose sum is σ = 12260575008. Its totient is φ = 12251947260.

The previous prime is 12256261123. The next prime is 12256261189. The reversal of 12256261133 is 33116265221.

It is a happy number.

12256261133 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.

It is a cyclic number.

It is not a de Polignac number, because 12256261133 - 2⁴ = 12256261117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12256261133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12256261123) 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, 2152673 + ... + 2158358.

It is an arithmetic number, because the mean of its divisors is an integer number (3065143752).

Almost surely, 2^12256261133 is an apocalyptic number.

It is an amenable number.

12256261133 is a deficient number, since it is larger than the sum of its proper divisors (4313875).

12256261133 is an equidigital number, since it uses as much as digits as its factorization.

12256261133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4313874.

The product of its digits is 12960, while the sum is 32.

The spelling of 12256261133 in words is "twelve billion, two hundred fifty-six million, two hundred sixty-one thousand, one hundred thirty-three".