12013123232233 has 4 divisors (see below), whose sum is σ = 12031297398148. Its totient is φ = 11994949066320.

The previous prime is 12013123232197. The next prime is 12013123232293. The reversal of 12013123232233 is 33223232131021.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4297217058729 + 7715906173504 = 2072973^2 + 2777752^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12013123232233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12013123232293) 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, 9087081966 + ... + 9087083287.

It is an arithmetic number, because the mean of its divisors is an integer number (3007824349537).

Almost surely, 2^{12013123232233} is an apocalyptic number.

It is an amenable number.

12013123232233 is a deficient number, since it is larger than the sum of its proper divisors (18174165915).

12013123232233 is an equidigital number, since it uses as much as digits as its factorization.

12013123232233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18174165914.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 12013123232233 its reverse (33223232131021), we get a palindrome (45236355363254).

The spelling of 12013123232233 in words is "twelve trillion, thirteen billion, one hundred twenty-three million, two hundred thirty-two thousand, two hundred thirty-three".