12320213203 has 4 divisors (see below), whose sum is σ = 12320460040. Its totient is φ = 12319966368.

The previous prime is 12320213177. The next prime is 12320213221. The reversal of 12320213203 is 30231202321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30231202321 = 691 ⋅43749931.

It is a cyclic number.

It is not a de Polignac number, because 12320213203 - 2⁹ = 12320212691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12320219203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19233 + ... + 158146.

It is an arithmetic number, because the mean of its divisors is an integer number (3080115010).

Almost surely, 2^12320213203 is an apocalyptic number.

12320213203 is a deficient number, since it is larger than the sum of its proper divisors (246837).

12320213203 is an equidigital number, since it uses as much as digits as its factorization.

12320213203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246836.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 12320213203 its reverse (30231202321), we get a palindrome (42551415524).

The spelling of 12320213203 in words is "twelve billion, three hundred twenty million, two hundred thirteen thousand, two hundred three".