313206216313 has 4 divisors (see below), whose sum is σ = 313207956468. Its totient is φ = 313204476160.

The previous prime is 313206216299. The next prime is 313206216359. The reversal of 313206216313 is 313612602313.

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 83953903504 + 229252312809 = 289748^2 + 478803^2 .

It is a cyclic number.

It is not a de Polignac number, because 313206216313 - 2²¹ = 313204119161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313206216373) 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, 564268 + ... + 972013.

It is an arithmetic number, because the mean of its divisors is an integer number (78301989117).

Almost surely, 2^313206216313 is an apocalyptic number.

It is an amenable number.

313206216313 is a deficient number, since it is larger than the sum of its proper divisors (1740155).

313206216313 is a wasteful number, since it uses less digits than its factorization.

313206216313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740154.

The product of its (nonzero) digits is 11664, while the sum is 31.

Adding to 313206216313 its reverse (313612602313), we get a palindrome (626818818626).

The spelling of 313206216313 in words is "three hundred thirteen billion, two hundred six million, two hundred sixteen thousand, three hundred thirteen".