313321030313 has 4 divisors (see below), whose sum is σ = 318457440708. Its totient is φ = 308184619920.

The previous prime is 313321030301. The next prime is 313321030349. The reversal of 313321030313 is 313030123313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59872217344 + 253448812969 = 244688^2 + 503437^2 .

It is a cyclic number.

It is not a de Polignac number, because 313321030313 - 2⁶ = 313321030249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313321030613) 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, 2568205106 + ... + 2568205227.

It is an arithmetic number, because the mean of its divisors is an integer number (79614360177).

Almost surely, 2^313321030313 is an apocalyptic number.

It is an amenable number.

313321030313 is a deficient number, since it is larger than the sum of its proper divisors (5136410395).

313321030313 is an equidigital number, since it uses as much as digits as its factorization.

313321030313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5136410394.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 313321030313 its reverse (313030123313), we get a palindrome (626351153626).

The spelling of 313321030313 in words is "three hundred thirteen billion, three hundred twenty-one million, thirty thousand, three hundred thirteen".