12011133101223 has 4 divisors (see below), whose sum is σ = 16014844134968. Its totient is φ = 8007422067480.

The previous prime is 12011133101189. The next prime is 12011133101243. The reversal of 12011133101223 is 32210133111021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12011133101223 - 2¹³ = 12011133093031 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 12011133101223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011133101243) 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, 2001855516868 + ... + 2001855516873.

It is an arithmetic number, because the mean of its divisors is an integer number (4003711033742).

Almost surely, 2^{12011133101223} is an apocalyptic number.

12011133101223 is a deficient number, since it is larger than the sum of its proper divisors (4003711033745).

12011133101223 is an equidigital number, since it uses as much as digits as its factorization.

12011133101223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4003711033744.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 12011133101223 its reverse (32210133111021), we get a palindrome (44221266212244).

The spelling of 12011133101223 in words is "twelve trillion, eleven billion, one hundred thirty-three million, one hundred one thousand, two hundred twenty-three".