313301220 has 48 divisors (see below), whose sum is σ = 878387328. Its totient is φ = 83438080.

The previous prime is 313301167. The next prime is 313301249. The reversal of 313301220 is 22103313.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 313301220.

It is an unprimeable number.

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, 49897 + ... + 55823.

It is an arithmetic number, because the mean of its divisors is an integer number (18299736).

Almost surely, 2^313301220 is an apocalyptic number.

313301220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

313301220 is an abundant number, since it is smaller than the sum of its proper divisors (565086108).

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

313301220 is a wasteful number, since it uses less digits than its factorization.

313301220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6820 (or 6818 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 313301220 is about 17700.3169463148. The cubic root of 313301220 is about 679.1838680493.

Adding to 313301220 its reverse (22103313), we get a palindrome (335404533).

The spelling of 313301220 in words is "three hundred thirteen million, three hundred one thousand, two hundred twenty".