12001113221203 has 4 divisors (see below), whose sum is σ = 12001136200600. Its totient is φ = 12001090241808.

The previous prime is 12001113221173. The next prime is 12001113221213. The reversal of 12001113221203 is 30212231110021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12001113221203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001113221213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10687653 + ... + 11757046.

It is an arithmetic number, because the mean of its divisors is an integer number (3000284050150).

Almost surely, 2^{12001113221203} is an apocalyptic number.

12001113221203 is a deficient number, since it is larger than the sum of its proper divisors (22979397).

12001113221203 is an equidigital number, since it uses as much as digits as its factorization.

12001113221203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22979396.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12001113221203 its reverse (30212231110021), we get a palindrome (42213344331224).

The spelling of 12001113221203 in words is "twelve trillion, one billion, one hundred thirteen million, two hundred twenty-one thousand, two hundred three".