12203230211321 has 4 divisors (see below), whose sum is σ = 12231543970944. Its totient is φ = 12174916451700.

The previous prime is 12203230211309. The next prime is 12203230211323. The reversal of 12203230211321 is 12311203230221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12203230211321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12203230211323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14156879165 + ... + 14156880026.

It is an arithmetic number, because the mean of its divisors is an integer number (3057885992736).

Almost surely, 2^{12203230211321} is an apocalyptic number.

It is an amenable number.

12203230211321 is a deficient number, since it is larger than the sum of its proper divisors (28313759623).

12203230211321 is an equidigital number, since it uses as much as digits as its factorization.

12203230211321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28313759622.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12203230211321 its reverse (12311203230221), we get a palindrome (24514433441542).

The spelling of 12203230211321 in words is "twelve trillion, two hundred three billion, two hundred thirty million, two hundred eleven thousand, three hundred twenty-one".