3130304520 has 256 divisors, whose sum is σ = 11426365440. Its totient is φ = 669708288.

The previous prime is 3130304491. The next prime is 3130304561. The reversal of 3130304520 is 254030313.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3183949 + ... + 3184931.

It is an arithmetic number, because the mean of its divisors is an integer number (44634240).

Almost surely, 2^3130304520 is an apocalyptic number.

3130304520 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 3130304520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5713182720).

3130304520 is an abundant number, since it is smaller than the sum of its proper divisors (8296060920).

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

3130304520 is a wasteful number, since it uses less digits than its factorization.

3130304520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244 (or 1240 counting only the distinct ones).

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

The square root of 3130304520 is about 55949.1243899313. The cubic root of 3130304520 is about 1462.8356287199.

Adding to 3130304520 its reverse (254030313), we get a palindrome (3384334833).

The spelling of 3130304520 in words is "three billion, one hundred thirty million, three hundred four thousand, five hundred twenty".