315310020 has 24 divisors (see below), whose sum is σ = 882868224. Its totient is φ = 84082656.

The previous prime is 315310019. The next prime is 315310027. The reversal of 315310020 is 20013513.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (315310027) 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, 2627524 + ... + 2627643.

It is an arithmetic number, because the mean of its divisors is an integer number (36786176).

Almost surely, 2^315310020 is an apocalyptic number.

315310020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

315310020 is an abundant number, since it is smaller than the sum of its proper divisors (567558204).

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

315310020 is a wasteful number, since it uses less digits than its factorization.

315310020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5255179 (or 5255177 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 315310020 is about 17756.9710254874. The cubic root of 315310020 is about 680.6323558279.

Adding to 315310020 its reverse (20013513), we get a palindrome (335323533).

The spelling of 315310020 in words is "three hundred fifteen million, three hundred ten thousand, twenty".