118909000100 has 72 divisors (see below), whose sum is σ = 281615600448. Its totient is φ = 43220348800.

The previous prime is 118909000099. The next prime is 118909000103. The reversal of 118909000100 is 1000909811.

It is not an unprimeable number, because it can be changed into a prime (118909000103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2569769 + ... + 2615631.

It is an arithmetic number, because the mean of its divisors is an integer number (3911327784).

Almost surely, 2^118909000100 is an apocalyptic number.

118909000100 is a gapful number since it is divisible by the number (10) 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 118909000100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140807800224).

118909000100 is an abundant number, since it is smaller than the sum of its proper divisors (162706600348).

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

118909000100 is a wasteful number, since it uses less digits than its factorization.

118909000100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48245 (or 48238 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 29.

Adding to 118909000100 its reverse (1000909811), we get a palindrome (119909909911).

The spelling of 118909000100 in words is "one hundred eighteen billion, nine hundred nine million, one hundred", and thus it is an aban number.