313224321 has 16 divisors (see below), whose sum is σ = 424359936. Its totient is φ = 205472976.

The previous prime is 313224319. The next prime is 313224323. The reversal of 313224321 is 123422313.

It is an interprime number because it is at equal distance from previous prime (313224319) and next prime (313224323).

It is not a de Polignac number, because 313224321 - 2¹ = 313224319 is a prime.

It is a super-2 number, since 2×313224321² = 196218950531822082, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (313224323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63096 + ... + 67878.

It is an arithmetic number, because the mean of its divisors is an integer number (26522496).

Almost surely, 2^313224321 is an apocalyptic number.

It is an amenable number.

313224321 is a deficient number, since it is larger than the sum of its proper divisors (111135615).

313224321 is a wasteful number, since it uses less digits than its factorization.

313224321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5132.

The product of its digits is 864, while the sum is 21.

The square root of 313224321 is about 17698.1445637671. The cubic root of 313224321 is about 679.1282955091.

Adding to 313224321 its reverse (123422313), we get a palindrome (436646634).

The spelling of 313224321 in words is "three hundred thirteen million, two hundred twenty-four thousand, three hundred twenty-one".