20003310122100 has 576 divisors, whose sum is σ = 67500067219200. Its totient is φ = 4540301475840.

The previous prime is 20003310122077. The next prime is 20003310122111. The reversal of 20003310122100 is 122101330002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20003310122100.

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 191 ways as a sum of consecutive naturals, for example, 189968266 + ... + 190073534.

It is an arithmetic number, because the mean of its divisors is an integer number (117187616700).

Almost surely, 2^{20003310122100} is an apocalyptic number.

20003310122100 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 20003310122100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33750033609600).

20003310122100 is an abundant number, since it is smaller than the sum of its proper divisors (47496757097100).

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

20003310122100 is a wasteful number, since it uses less digits than its factorization.

20003310122100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105412 (or 105405 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20003310122100 its reverse (122101330002), we get a palindrome (20125411452102).

The spelling of 20003310122100 in words is "twenty trillion, three billion, three hundred ten million, one hundred twenty-two thousand, one hundred".