20411043100 has 216 divisors, whose sum is σ = 52522138368. Its totient is φ = 6864076800.

The previous prime is 20411043089. The next prime is 20411043187. The reversal of 20411043100 is 134011402.

It is a super-2 number, since 2×20411043100² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 105756604 + ... + 105756796.

It is an arithmetic number, because the mean of its divisors is an integer number (243158048).

Almost surely, 2^20411043100 is an apocalyptic number.

20411043100 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 20411043100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26261069184).

20411043100 is an abundant number, since it is smaller than the sum of its proper divisors (32111095268).

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

20411043100 is a wasteful number, since it uses less digits than its factorization.

20411043100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20411043100 its reverse (134011402), we get a palindrome (20545054502).

The spelling of 20411043100 in words is "twenty billion, four hundred eleven million, forty-three thousand, one hundred".