12033011213 has 6 divisors (see below), whose sum is σ = 12782472426. Its totient is φ = 11325186752.

The previous prime is 12033011189. The next prime is 12033011231. The reversal of 12033011213 is 31211033021.

12033011213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 9138786409 + 2894224804 = 95597^2 + 53798^2 .

It is not a de Polignac number, because 12033011213 - 2¹² = 12033007117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12033011191 and 12033011200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12033011273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20818070 + ... + 20818647.

It is an arithmetic number, because the mean of its divisors is an integer number (2130412071).

Almost surely, 2^12033011213 is an apocalyptic number.

It is an amenable number.

12033011213 is a deficient number, since it is larger than the sum of its proper divisors (749461213).

12033011213 is an equidigital number, since it uses as much as digits as its factorization.

12033011213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41636751 (or 41636734 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12033011213 its reverse (31211033021), we get a palindrome (43244044234).

The spelling of 12033011213 in words is "twelve billion, thirty-three million, eleven thousand, two hundred thirteen".