313321316 has 24 divisors (see below), whose sum is σ = 683610816. Its totient is φ = 122073120.

The previous prime is 313321313. The next prime is 313321331. The reversal of 313321316 is 613123313.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 313321291 and 313321300.

It is not an unprimeable number, because it can be changed into a prime (313321313) 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, 508331 + ... + 508946.

It is an arithmetic number, because the mean of its divisors is an integer number (28483784).

Almost surely, 2^313321316 is an apocalyptic number.

It is an amenable number.

313321316 is an abundant number, since it is smaller than the sum of its proper divisors (370289500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313321316 is a wasteful number, since it uses less digits than its factorization.

313321316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017299 (or 1017297 counting only the distinct ones).

The product of its digits is 972, while the sum is 23.

The square root of 313321316 is about 17700.8846106628. The cubic root of 313321316 is about 679.1983893112.

Adding to 313321316 its reverse (613123313), we get a palindrome (926444629).

The spelling of 313321316 in words is "three hundred thirteen million, three hundred twenty-one thousand, three hundred sixteen".