310130220 has 24 divisors (see below), whose sum is σ = 868364784. Its totient is φ = 82701376.

The previous prime is 310130213. The next prime is 310130237. The reversal of 310130220 is 22031013.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 310130196 and 310130205.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2584359 + ... + 2584478.

It is an arithmetic number, because the mean of its divisors is an integer number (36181866).

Almost surely, 2^310130220 is an apocalyptic number.

310130220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

310130220 is an abundant number, since it is smaller than the sum of its proper divisors (558234564).

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

310130220 is a wasteful number, since it uses less digits than its factorization.

310130220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5168849 (or 5168847 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 310130220 is about 17610.5144728937. The cubic root of 310130220 is about 676.8846970916.

Adding to 310130220 its reverse (22031013), we get a palindrome (332161233).

The spelling of 310130220 in words is "three hundred ten million, one hundred thirty thousand, two hundred twenty".