12103220313 has 28 divisors (see below), whose sum is σ = 18162617088. Its totient is φ = 8061661080.

The previous prime is 12103220309. The next prime is 12103220351. The reversal of 12103220313 is 31302230121.

12103220313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12103220313 - 2² = 12103220309 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12103220713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 890656 + ... + 904142.

It is an arithmetic number, because the mean of its divisors is an integer number (648664896).

Almost surely, 2^12103220313 is an apocalyptic number.

It is an amenable number.

12103220313 is a deficient number, since it is larger than the sum of its proper divisors (6059396775).

12103220313 is an equidigital number, since it uses as much as digits as its factorization.

12103220313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14736 (or 14721 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12103220313 its reverse (31302230121), we get a palindrome (43405450434).

The spelling of 12103220313 in words is "twelve billion, one hundred three million, two hundred twenty thousand, three hundred thirteen".