313402321 has 8 divisors (see below), whose sum is σ = 338814080. Its totient is φ = 288882288.

The previous prime is 313402289. The next prime is 313402339. The reversal of 313402321 is 123204313.

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

It is a cyclic number.

It is not a de Polignac number, because 313402321 - 2⁵ = 313402289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (313402351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222201 + ... + 223606.

It is an arithmetic number, because the mean of its divisors is an integer number (42351760).

Almost surely, 2^313402321 is an apocalyptic number.

It is an amenable number.

313402321 is a deficient number, since it is larger than the sum of its proper divisors (25411759).

313402321 is a wasteful number, since it uses less digits than its factorization.

313402321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445863.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 313402321 is about 17703.1726252669. The cubic root of 313402321 is about 679.2569167951.

Adding to 313402321 its reverse (123204313), we get a palindrome (436606634).

The spelling of 313402321 in words is "three hundred thirteen million, four hundred two thousand, three hundred twenty-one".