12001311213213 has 48 divisors (see below), whose sum is σ = 19262749121280. Its totient is φ = 6619144017024.

The previous prime is 12001311213161. The next prime is 12001311213217. The reversal of 12001311213213 is 31231211310021.

12001311213213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12001311213213 - 2¹² = 12001311209117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 12001311213213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001311213217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11996895 + ... + 12958707.

It is an arithmetic number, because the mean of its divisors is an integer number (401307273360).

Almost surely, 2^{12001311213213} is an apocalyptic number.

It is an amenable number.

12001311213213 is a deficient number, since it is larger than the sum of its proper divisors (7261437908067).

12001311213213 is a wasteful number, since it uses less digits than its factorization.

12001311213213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964786 (or 964779 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 12001311213213 its reverse (31231211310021), we get a palindrome (43232522523234).

The spelling of 12001311213213 in words is "twelve trillion, one billion, three hundred eleven million, two hundred thirteen thousand, two hundred thirteen".