12231320303 has 4 divisors (see below), whose sum is σ = 12267615360. Its totient is φ = 12195025248.

The previous prime is 12231320221. The next prime is 12231320323. The reversal of 12231320303 is 30302313221.

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 12231320303 - 2⁸ = 12231320047 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 (12231320323) 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, 18147023 + ... + 18147696.

It is an arithmetic number, because the mean of its divisors is an integer number (3066903840).

Almost surely, 2^12231320303 is an apocalyptic number.

12231320303 is a deficient number, since it is larger than the sum of its proper divisors (36295057).

12231320303 is an equidigital number, since it uses as much as digits as its factorization.

12231320303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36295056.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 12231320303 its reverse (30302313221), we get a palindrome (42533633524).

The spelling of 12231320303 in words is "twelve billion, two hundred thirty-one million, three hundred twenty thousand, three hundred three".