313110223220 has 48 divisors (see below), whose sum is σ = 673138459728. Its totient is φ = 122305305600.

The previous prime is 313110223207. The next prime is 313110223277. The reversal of 313110223220 is 22322011313.

It can be written as a sum of positive squares in 8 ways, for example, as 87395914384 + 225714308836 = 295628^2 + 475094^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 313110223192 and 313110223201.

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, 914219 + ... + 1209138.

It is an arithmetic number, because the mean of its divisors is an integer number (14023717911).

Almost surely, 2^313110223220 is an apocalyptic number.

It is an amenable number.

313110223220 is an abundant number, since it is smaller than the sum of its proper divisors (360028236508).

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

313110223220 is a wasteful number, since it uses less digits than its factorization.

313110223220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123540 (or 2123538 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 313110223220 its reverse (22322011313), we get a palindrome (335432234533).

The spelling of 313110223220 in words is "three hundred thirteen billion, one hundred ten million, two hundred twenty-three thousand, two hundred twenty".