12011303001123 has 48 divisors (see below), whose sum is σ = 17984756325120. Its totient is φ = 7716655123200.

The previous prime is 12011303001073. The next prime is 12011303001157. The reversal of 12011303001123 is 32110030311021.

12011303001123 is a `hidden beast` number, since 1 + 201 + 130 + 300 + 11 + 23 = 666.

It is not a de Polignac number, because 12011303001123 - 2¹² = 12011302997027 is a prime.

It is a super-2 number, since 2×12011303001123² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12011303001096 and 12011303001105.

It is not an unprimeable number, because it can be changed into a prime (12011303001323) 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 47 ways as a sum of consecutive naturals, for example, 66439233 + ... + 66619773.

It is an arithmetic number, because the mean of its divisors is an integer number (374682423440).

Almost surely, 2^{12011303001123} is an apocalyptic number.

12011303001123 is a deficient number, since it is larger than the sum of its proper divisors (5973453323997).

12011303001123 is a wasteful number, since it uses less digits than its factorization.

12011303001123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181580 (or 181577 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 12011303001123 its reverse (32110030311021), we get a palindrome (44121333312144).

The spelling of 12011303001123 in words is "twelve trillion, eleven billion, three hundred three million, one thousand, one hundred twenty-three".