100111121180 has 24 divisors (see below), whose sum is σ = 240266691168. Its totient is φ = 34323812928.

The previous prime is 100111121179. The next prime is 100111121191. The reversal of 100111121180 is 81121111001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357539579 + ... + 357539858.

It is an arithmetic number, because the mean of its divisors is an integer number (10011112132).

Almost surely, 2^100111121180 is an apocalyptic number.

100111121180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100111121180 is an abundant number, since it is smaller than the sum of its proper divisors (140155569988).

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

100111121180 is a wasteful number, since it uses less digits than its factorization.

100111121180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715079453 (or 715079451 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 100111121180 its reverse (81121111001), we get a palindrome (181232232181).

The spelling of 100111121180 in words is "one hundred billion, one hundred eleven million, one hundred twenty-one thousand, one hundred eighty".