12011133003123 has 16 divisors (see below), whose sum is σ = 16201912256000. Its totient is φ = 7914420835200.

The previous prime is 12011133003029. The next prime is 12011133003197. The reversal of 12011133003123 is 32130033111021.

It is a happy number.

It is not a de Polignac number, because 12011133003123 - 2⁸ = 12011133002867 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 12011133003123.

It is not an unprimeable number, because it can be changed into a prime (12011133003223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66529558 + ... + 66709851.

It is an arithmetic number, because the mean of its divisors is an integer number (1012619516000).

Almost surely, 2^{12011133003123} is an apocalyptic number.

12011133003123 is a deficient number, since it is larger than the sum of its proper divisors (4190779252877).

12011133003123 is a wasteful number, since it uses less digits than its factorization.

12011133003123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133239762.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 12011133003123 its reverse (32130033111021), we get a palindrome (44141166114144).

The spelling of 12011133003123 in words is "twelve trillion, eleven billion, one hundred thirty-three million, three thousand, one hundred twenty-three".