20040101100 has 108 divisors (see below), whose sum is σ = 62880767040. Its totient is φ = 5338396800.

The previous prime is 20040101093. The next prime is 20040101111. The reversal of 20040101100 is 110104002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 880666 + ... + 903134.

Almost surely, 2^20040101100 is an apocalyptic number.

20040101100 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 20040101100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31440383520).

20040101100 is an abundant number, since it is smaller than the sum of its proper divisors (42840665940).

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

20040101100 is a wasteful number, since it uses less digits than its factorization.

20040101100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23480 (or 23470 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20040101100 its reverse (110104002), we get a palindrome (20150205102).

The spelling of 20040101100 in words is "twenty billion, forty million, one hundred one thousand, one hundred".