20303133300 has 144 divisors (see below), whose sum is σ = 65672671680. Its totient is φ = 5380836480.

The previous prime is 20303133299. The next prime is 20303133317. The reversal of 20303133300 is 333130302.

20303133300 is a `hidden beast` number, since 20 + 3 + 0 + 313 + 330 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 417034 + ... + 463166.

It is an arithmetic number, because the mean of its divisors is an integer number (456060220).

Almost surely, 2^20303133300 is an apocalyptic number.

20303133300 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 20303133300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32836335840).

20303133300 is an abundant number, since it is smaller than the sum of its proper divisors (45369538380).

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

20303133300 is a wasteful number, since it uses less digits than its factorization.

20303133300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46319 (or 46306 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 18.

Adding to 20303133300 its reverse (333130302), we get a palindrome (20636263602).

The spelling of 20303133300 in words is "twenty billion, three hundred three million, one hundred thirty-three thousand, three hundred".