12203230202321 has 4 divisors (see below), whose sum is σ = 12206607795252. Its totient is φ = 12199852609392.

The previous prime is 12203230202297. The next prime is 12203230202351. The reversal of 12203230202321 is 12320203230221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23688595921 + 12179541606400 = 153911^2 + 3489920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12203230202321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12203230202351) 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, 1688791046 + ... + 1688798271.

It is an arithmetic number, because the mean of its divisors is an integer number (3051651948813).

Almost surely, 2^{12203230202321} is an apocalyptic number.

It is an amenable number.

12203230202321 is a deficient number, since it is larger than the sum of its proper divisors (3377592931).

12203230202321 is an equidigital number, since it uses as much as digits as its factorization.

12203230202321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3377592930.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 12203230202321 its reverse (12320203230221), we get a palindrome (24523433432542).

The spelling of 12203230202321 in words is "twelve trillion, two hundred three billion, two hundred thirty million, two hundred two thousand, three hundred twenty-one".