11131112120 has 32 divisors (see below), whose sum is σ = 25048487520. Its totient is φ = 4451825280.

The previous prime is 11131112119. The next prime is 11131112129. The reversal of 11131112120 is 2121113111.

It is a junction number, because it is equal to n+sod(n) for n = 11131112095 and 11131112104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131112129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366725 + ... + 395915.

It is an arithmetic number, because the mean of its divisors is an integer number (782765235).

Almost surely, 2^11131112120 is an apocalyptic number.

11131112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11131112120 is an abundant number, since it is smaller than the sum of its proper divisors (13917375400).

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

11131112120 is a wasteful number, since it uses less digits than its factorization.

11131112120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38735 (or 38731 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 11131112120 its reverse (2121113111), we get a palindrome (13252225231).

Subtracting from 11131112120 its reverse (2121113111), we obtain a palindrome (9009999009).

The spelling of 11131112120 in words is "eleven billion, one hundred thirty-one million, one hundred twelve thousand, one hundred twenty".