313523220 has 48 divisors (see below), whose sum is σ = 890241408. Its totient is φ = 82427520.

The previous prime is 313523209. The next prime is 313523233. The reversal of 313523220 is 22325313.

313523220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32539 + ... + 41058.

It is an arithmetic number, because the mean of its divisors is an integer number (18546696).

Almost surely, 2^313523220 is an apocalyptic number.

313523220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

313523220 is an abundant number, since it is smaller than the sum of its proper divisors (576718188).

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

313523220 is a wasteful number, since it uses less digits than its factorization.

313523220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73680 (or 73678 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 313523220 is about 17706.5869099609. The cubic root of 313523220 is about 679.3442496140.

Adding to 313523220 its reverse (22325313), we get a palindrome (335848533).

The spelling of 313523220 in words is "three hundred thirteen million, five hundred twenty-three thousand, two hundred twenty".