12103221313 has 4 divisors (see below), whose sum is σ = 12121928640. Its totient is φ = 12084513988.

The previous prime is 12103221287. The next prime is 12103221337. The reversal of 12103221313 is 31312230121.

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-12103221313 is a prime.

It is a super-3 number, since 3×12103221313³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12103221413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9352693 + ... + 9353986.

It is an arithmetic number, because the mean of its divisors is an integer number (3030482160).

Almost surely, 2^12103221313 is an apocalyptic number.

It is an amenable number.

12103221313 is a deficient number, since it is larger than the sum of its proper divisors (18707327).

12103221313 is an equidigital number, since it uses as much as digits as its factorization.

12103221313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18707326.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12103221313 its reverse (31312230121), we get a palindrome (43415451434).

The spelling of 12103221313 in words is "twelve billion, one hundred three million, two hundred twenty-one thousand, three hundred thirteen".