313443321 has 8 divisors (see below), whose sum is σ = 418869600. Its totient is φ = 208489632.

The previous prime is 313443301. The next prime is 313443337. The reversal of 313443321 is 123344313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 313443321 - 2⁹ = 313442809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313443291 and 313443300.

It is not an unprimeable number, because it can be changed into a prime (313443301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116596 + ... + 119253.

It is an arithmetic number, because the mean of its divisors is an integer number (52358700).

Almost surely, 2^313443321 is an apocalyptic number.

It is an amenable number.

313443321 is a deficient number, since it is larger than the sum of its proper divisors (105426279).

313443321 is a wasteful number, since it uses less digits than its factorization.

313443321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236295.

The product of its digits is 2592, while the sum is 24.

The square root of 313443321 is about 17704.3305719251. The cubic root of 313443321 is about 679.2865361452.

Adding to 313443321 its reverse (123344313), we get a palindrome (436787634).

The spelling of 313443321 in words is "three hundred thirteen million, four hundred forty-three thousand, three hundred twenty-one".