313203220 has 48 divisors (see below), whose sum is σ = 755294400. Its totient is φ = 107896320.

The previous prime is 313203217. The next prime is 313203221. The reversal of 313203220 is 22302313.

It is a junction number, because it is equal to n+sod(n) for n = 313203194 and 313203203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313203221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33285 + ... + 41644.

It is an arithmetic number, because the mean of its divisors is an integer number (15735300).

Almost surely, 2^313203220 is an apocalyptic number.

It is an amenable number.

313203220 is an abundant number, since it is smaller than the sum of its proper divisors (442091180).

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

313203220 is a wasteful number, since it uses less digits than its factorization.

313203220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74968 (or 74966 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 313203220 is about 17697.5484177894. The cubic root of 313203220 is about 679.1130448756.

Adding to 313203220 its reverse (22302313), we get a palindrome (335505533).

The spelling of 313203220 in words is "three hundred thirteen million, two hundred three thousand, two hundred twenty".