20303330320000 has 480 divisors, whose sum is σ = 63318855558420. Its totient is φ = 6425653248000.

The previous prime is 20303330319977. The next prime is 20303330320033. The reversal of 20303330320000 is 2303330302.

It can be written as a sum of positive squares in 10 ways, for example, as 252494190144 + 20050836129856 = 502488^2 + 4477816^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20303330320000.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 50760792 + ... + 51159208.

Almost surely, 2^{20303330320000} is an apocalyptic number.

20303330320000 is a gapful number since it is divisible by the number (20) 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 20303330320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31659427779210).

20303330320000 is an abundant number, since it is smaller than the sum of its proper divisors (43015525238420).

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

20303330320000 is an equidigital number, since it uses as much as digits as its factorization.

20303330320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398478 (or 398444 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 19.

Adding to 20303330320000 its reverse (2303330302), we get a palindrome (20305633650302).

The spelling of 20303330320000 in words is "twenty trillion, three hundred three billion, three hundred thirty million, three hundred twenty thousand".