12011023231233 has 16 divisors (see below), whose sum is σ = 17247112800960. Its totient is φ = 7391178051264.

The previous prime is 12011023231213. The next prime is 12011023231261. The reversal of 12011023231233 is 33213232011021.

It is not a de Polignac number, because 12011023231233 - 2¹⁰ = 12011023230209 is a prime.

It is a super-2 number, since 2×12011023231233² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12011023231213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3274491 + ... + 5894432.

It is an arithmetic number, because the mean of its divisors is an integer number (1077944550060).

Almost surely, 2^{12011023231233} is an apocalyptic number.

12011023231233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12011023231233 is a deficient number, since it is larger than the sum of its proper divisors (5236089569727).

12011023231233 is a wasteful number, since it uses less digits than its factorization.

12011023231233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9202528.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 12011023231233 its reverse (33213232011021), we get a palindrome (45224255242254).

The spelling of 12011023231233 in words is "twelve trillion, eleven billion, twenty-three million, two hundred thirty-one thousand, two hundred thirty-three".