20043100000 has 576 divisors, whose sum is σ = 65200826880. Its totient is φ = 5875200000.

The previous prime is 20043099983. The next prime is 20043100027. The reversal of 20043100000 is 134002.

It is a super-2 number, since 2×20043100000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 20043100000.

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 95 ways as a sum of consecutive naturals, for example, 146299932 + ... + 146300068.

It is an arithmetic number, because the mean of its divisors is an integer number (113195880).

Almost surely, 2^20043100000 is an apocalyptic number.

20043100000 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 20043100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32600413440).

20043100000 is an abundant number, since it is smaller than the sum of its proper divisors (45157726880).

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

20043100000 is a wasteful number, since it uses less digits than its factorization.

20043100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 20043100000 its reverse (134002), we get a palindrome (20043234002).

The spelling of 20043100000 in words is "twenty billion, forty-three million, one hundred thousand".