313221113 has 4 divisors (see below), whose sum is σ = 319885440. Its totient is φ = 306556788.

The previous prime is 313221089. The next prime is 313221119. The reversal of 313221113 is 311122313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313221113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313221091 and 313221100.

It is not an unprimeable number, because it can be changed into a prime (313221119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3332093 + ... + 3332186.

It is an arithmetic number, because the mean of its divisors is an integer number (79971360).

Almost surely, 2^313221113 is an apocalyptic number.

It is an amenable number.

313221113 is a deficient number, since it is larger than the sum of its proper divisors (6664327).

313221113 is an equidigital number, since it uses as much as digits as its factorization.

313221113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6664326.

The product of its digits is 108, while the sum is 17.

The square root of 313221113 is about 17698.0539325656. The cubic root of 313221113 is about 679.1259769886.

Adding to 313221113 its reverse (311122313), we get a palindrome (624343426).

The spelling of 313221113 in words is "three hundred thirteen million, two hundred twenty-one thousand, one hundred thirteen".