3130313220 has 144 divisors (see below), whose sum is σ = 9790068288. Its totient is φ = 809015040.

The previous prime is 3130313203. The next prime is 3130313227. The reversal of 3130313220 is 223130313.

3130313220 is a `hidden beast` number, since 3 + 130 + 313 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3130313193 and 3130313202.

It is not an unprimeable number, because it can be changed into a prime (3130313227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2043855 + ... + 2045385.

Almost surely, 2^3130313220 is an apocalyptic number.

3130313220 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 3130313220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4895034144).

3130313220 is an abundant number, since it is smaller than the sum of its proper divisors (6659755068).

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

3130313220 is a wasteful number, since it uses less digits than its factorization.

3130313220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890 (or 1885 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 3130313220 is about 55949.2021390833. The cubic root of 3130313220 is about 1462.8369839297.

Adding to 3130313220 its reverse (223130313), we get a palindrome (3353443533).

The spelling of 3130313220 in words is "three billion, one hundred thirty million, three hundred thirteen thousand, two hundred twenty".