11111101120 has 56 divisors (see below), whose sum is σ = 30238074144. Its totient is φ = 3809519616.

The previous prime is 11111101109. The next prime is 11111101153. The reversal of 11111101120 is 2110111111.

It is a tau number, because it is divible by the number of its divisors (56).

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

It is a junction number, because it is equal to n+sod(n) for n = 11111101097 and 11111101106.

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, 2477917 + ... + 2482396.

Almost surely, 2^11111101120 is an apocalyptic number.

11111101120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111101120 is an abundant number, since it is smaller than the sum of its proper divisors (19126973024).

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

11111101120 is an equidigital number, since it uses as much as digits as its factorization.

11111101120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4960337 (or 4960327 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 11111101120 its reverse (2110111111), we get a palindrome (13221212231).

Subtracting from 11111101120 its reverse (2110111111), we obtain a palindrome (9000990009).

The spelling of 11111101120 in words is "eleven billion, one hundred eleven million, one hundred one thousand, one hundred twenty".