303323130020 has 96 divisors (see below), whose sum is σ = 677659330656. Its totient is φ = 113649868800.

The previous prime is 303323130017. The next prime is 303323130029. The reversal of 303323130020 is 20031323303.

It can be written as a sum of positive squares in 16 ways, for example, as 8211259456 + 295111870564 = 90616^2 + 543242^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 303323129974 and 303323130001.

It is not an unprimeable number, because it can be changed into a prime (303323130029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68607410 + ... + 68611830.

It is an arithmetic number, because the mean of its divisors is an integer number (7058951361).

Almost surely, 2^303323130020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 303323130020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338829665328).

303323130020 is an abundant number, since it is smaller than the sum of its proper divisors (374336200636).

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

303323130020 is a wasteful number, since it uses less digits than its factorization.

303323130020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5361 (or 5359 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 303323130020 its reverse (20031323303), we get a palindrome (323354453323).

The spelling of 303323130020 in words is "three hundred three billion, three hundred twenty-three million, one hundred thirty thousand, twenty".