313030232220 has 96 divisors (see below), whose sum is σ = 923294937600. Its totient is φ = 79023078144.

The previous prime is 313030232183. The next prime is 313030232327. The reversal of 313030232220 is 22232030313.

It is a super-2 number, since 2×313030232220² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1457946 + ... + 1658814.

It is an arithmetic number, because the mean of its divisors is an integer number (9617655600).

Almost surely, 2^313030232220 is an apocalyptic number.

313030232220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 313030232220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (461647468800).

313030232220 is an abundant number, since it is smaller than the sum of its proper divisors (610264705380).

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

313030232220 is a wasteful number, since it uses less digits than its factorization.

313030232220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202267 (or 202265 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 313030232220 its reverse (22232030313), we get a palindrome (335262262533).

The spelling of 313030232220 in words is "three hundred thirteen billion, thirty million, two hundred thirty-two thousand, two hundred twenty".