12320121313 has 4 divisors (see below), whose sum is σ = 12321923328. Its totient is φ = 12318319300.

The previous prime is 12320121271. The next prime is 12320121329. The reversal of 12320121313 is 31312102321.

12320121313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 12320121313 - 2⁹ = 12320120801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12320121613) 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 3 ways as a sum of consecutive naturals, for example, 890713 + ... + 904438.

It is an arithmetic number, because the mean of its divisors is an integer number (3080480832).

Almost surely, 2^12320121313 is an apocalyptic number.

It is an amenable number.

12320121313 is a deficient number, since it is larger than the sum of its proper divisors (1802015).

12320121313 is an equidigital number, since it uses as much as digits as its factorization.

12320121313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802014.

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

Adding to 12320121313 its reverse (31312102321), we get a palindrome (43632223634).

The spelling of 12320121313 in words is "twelve billion, three hundred twenty million, one hundred twenty-one thousand, three hundred thirteen".