313221310113 has 32 divisors (see below), whose sum is σ = 439979268096. Its totient is φ = 197816208128.

The previous prime is 313221310111. The next prime is 313221310123. The reversal of 313221310113 is 311013122313.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 313221310113 - 2¹ = 313221310111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313221310113.

It is not an unprimeable number, because it can be changed into a prime (313221310111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10643806 + ... + 10673192.

It is an arithmetic number, because the mean of its divisors is an integer number (13749352128).

Almost surely, 2^313221310113 is an apocalyptic number.

It is an amenable number.

313221310113 is a deficient number, since it is larger than the sum of its proper divisors (126757957983).

313221310113 is a wasteful number, since it uses less digits than its factorization.

313221310113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30893.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 313221310113 its reverse (311013122313), we get a palindrome (624234432426).

The spelling of 313221310113 in words is "three hundred thirteen billion, two hundred twenty-one million, three hundred ten thousand, one hundred thirteen".