317030020 has 24 divisors (see below), whose sum is σ = 666246168. Its totient is φ = 126720000.

The previous prime is 317030017. The next prime is 317030027. The reversal of 317030020 is 20030713.

It can be written as a sum of positive squares in 4 ways, for example, as 219099204 + 97930816 = 14802^2 + 9896^2 .

It is a junction number, because it is equal to n+sod(n) for n = 317029976 and 317030003.

It is not an unprimeable number, because it can be changed into a prime (317030027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27070 + ... + 36970.

It is an arithmetic number, because the mean of its divisors is an integer number (27760257).

Almost surely, 2^317030020 is an apocalyptic number.

It is an amenable number.

317030020 is an abundant number, since it is smaller than the sum of its proper divisors (349216148).

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

317030020 is a wasteful number, since it uses less digits than its factorization.

317030020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11511 (or 11509 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 317030020 is about 17805.3368403970. The cubic root of 317030020 is about 681.8677171391.

Adding to 317030020 its reverse (20030713), we get a palindrome (337060733).

The spelling of 317030020 in words is "three hundred seventeen million, thirty thousand, twenty".