20331303100 has 72 divisors (see below), whose sum is σ = 46069238880. Its totient is φ = 7773511680.

The previous prime is 20331303079. The next prime is 20331303281. The reversal of 20331303100 is 130313302.

It is a super-2 number, since 2×20331303100² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 5225956 + ... + 5229844.

It is an arithmetic number, because the mean of its divisors is an integer number (639850540).

Almost surely, 2^20331303100 is an apocalyptic number.

20331303100 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 20331303100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23034619440).

20331303100 is an abundant number, since it is smaller than the sum of its proper divisors (25737935780).

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

20331303100 is a wasteful number, since it uses less digits than its factorization.

20331303100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6199 (or 6192 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 20331303100 its reverse (130313302), we get a palindrome (20461616402).

The spelling of 20331303100 in words is "twenty billion, three hundred thirty-one million, three hundred three thousand, one hundred".