10313720020321 has 2 divisors, whose sum is σ = 10313720020322. Its totient is φ = 10313720020320.

The previous prime is 10313720020309. The next prime is 10313720020381. The reversal of 10313720020321 is 12302002731301.

It is a happy number.

10313720020321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8329509715921 + 1984210304400 = 2886089^2 + 1408620^2 .

It is a cyclic number.

It is not a de Polignac number, because 10313720020321 - 2⁷ = 10313720020193 is a prime.

It is not a weakly prime, because it can be changed into another prime (10313720020381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5156860010160 + 5156860010161.

It is an arithmetic number, because the mean of its divisors is an integer number (5156860010161).

Almost surely, 2^{10313720020321} is an apocalyptic number.

It is an amenable number.

10313720020321 is a deficient number, since it is larger than the sum of its proper divisors (1).

10313720020321 is an equidigital number, since it uses as much as digits as its factorization.

10313720020321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

Adding to 10313720020321 its reverse (12302002731301), we get a palindrome (22615722751622).

The spelling of 10313720020321 in words is "ten trillion, three hundred thirteen billion, seven hundred twenty million, twenty thousand, three hundred twenty-one".