20330320204100 has 72 divisors (see below), whose sum is σ = 44204357672328. Its totient is φ = 8115991603200.

The previous prime is 20330320204043. The next prime is 20330320204127. The reversal of 20330320204100 is 140202303302.

It can be written as a sum of positive squares in 12 ways, for example, as 9983122713664 + 10347197490436 = 3159608^2 + 3216706^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 481090172 + ... + 481132428.

Almost surely, 2^{20330320204100} is an apocalyptic number.

20330320204100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20330320204100 is an abundant number, since it is smaller than the sum of its proper divisors (23874037468228).

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

20330320204100 is a wasteful number, since it uses less digits than its factorization.

20330320204100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51705 (or 51698 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20330320204100 its reverse (140202303302), we get a palindrome (20470522507402).

The spelling of 20330320204100 in words is "twenty trillion, three hundred thirty billion, three hundred twenty million, two hundred four thousand, one hundred".