12204201343231 has 4 divisors (see below), whose sum is σ = 12209432464872. Its totient is φ = 12198970221592.

The previous prime is 12204201343193. The next prime is 12204201343247. The reversal of 12204201343231 is 13234310240221.

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-12204201343231 is a prime.

It is a super-2 number, since 2×12204201343231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12204201343231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12204201313231) 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, 2615557321 + ... + 2615561986.

It is an arithmetic number, because the mean of its divisors is an integer number (3052358116218).

Almost surely, 2^{12204201343231} is an apocalyptic number.

12204201343231 is a deficient number, since it is larger than the sum of its proper divisors (5231121641).

12204201343231 is an equidigital number, since it uses as much as digits as its factorization.

12204201343231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5231121640.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 12204201343231 its reverse (13234310240221), we get a palindrome (25438511583452).

The spelling of 12204201343231 in words is "twelve trillion, two hundred four billion, two hundred one million, three hundred forty-three thousand, two hundred thirty-one".