313323113221213 has 4 divisors (see below), whose sum is σ = 313323149899900. Its totient is φ = 313323076542528.

The previous prime is 313323113221193. The next prime is 313323113221247. The reversal of 313323113221213 is 312122311323313.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 261997537850244 + 51325575370969 = 16186338^2 + 7164187^2 .

It is a cyclic number.

It is not a de Polignac number, because 313323113221213 - 2¹³ = 313323113213021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313323110221213) 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, 1974613 + ... + 25110661.

It is an arithmetic number, because the mean of its divisors is an integer number (78330787474975).

Almost surely, 2^{313323113221213} is an apocalyptic number.

It is an amenable number.

313323113221213 is a deficient number, since it is larger than the sum of its proper divisors (36678687).

313323113221213 is a wasteful number, since it uses less digits than its factorization.

313323113221213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36678686.

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

Adding to 313323113221213 its reverse (312122311323313), we get a palindrome (625445424544526).

The spelling of 313323113221213 in words is "three hundred thirteen trillion, three hundred twenty-three billion, one hundred thirteen million, two hundred twenty-one thousand, two hundred thirteen".