12013203213223 has 4 divisors (see below), whose sum is σ = 12013219436488. Its totient is φ = 12013186989960.

The previous prime is 12013203213217. The next prime is 12013203213239. The reversal of 12013203213223 is 32231230231021.

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

It is a cyclic number.

It is not a de Polignac number, because 12013203213223 - 2⁵ = 12013203213191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12013203253223) 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, 6944961 + ... + 8500522.

It is an arithmetic number, because the mean of its divisors is an integer number (3003304859122).

Almost surely, 2^{12013203213223} is an apocalyptic number.

12013203213223 is a deficient number, since it is larger than the sum of its proper divisors (16223265).

12013203213223 is an equidigital number, since it uses as much as digits as its factorization.

12013203213223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16223264.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 12013203213223 its reverse (32231230231021), we get a palindrome (44244433444244).

The spelling of 12013203213223 in words is "twelve trillion, thirteen billion, two hundred three million, two hundred thirteen thousand, two hundred twenty-three".