321301313 has 4 divisors (see below), whose sum is σ = 321801648. Its totient is φ = 320800980.

The previous prime is 321301307. The next prime is 321301319. The reversal of 321301313 is 313103123.

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, and also an emirpimes, since its reverse is a distinct semiprime: 313103123 = 167 ⋅1874869.

It is an interprime number because it is at equal distance from previous prime (321301307) and next prime (321301319).

It is a cyclic number.

It is not a de Polignac number, because 321301313 - 2⁶ = 321301249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321301291 and 321301300.

It is not an unprimeable number, because it can be changed into a prime (321301319) 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 3 ways as a sum of consecutive naturals, for example, 249203 + ... + 250488.

It is an arithmetic number, because the mean of its divisors is an integer number (80450412).

Almost surely, 2^321301313 is an apocalyptic number.

It is an amenable number.

321301313 is a deficient number, since it is larger than the sum of its proper divisors (500335).

321301313 is an equidigital number, since it uses as much as digits as its factorization.

321301313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500334.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 321301313 is about 17924.8797206564. The cubic root of 321301313 is about 684.9162971587.

Adding to 321301313 its reverse (313103123), we get a palindrome (634404436).

The spelling of 321301313 in words is "three hundred twenty-one million, three hundred one thousand, three hundred thirteen".