11131100120 has 64 divisors (see below), whose sum is σ = 28967742720. Its totient is φ = 3770388864.

The previous prime is 11131100117. The next prime is 11131100137. The reversal of 11131100120 is 2100113111.

It is a happy number.

It is a super-3 number, since 3×11131100120³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216242 + ... + 262721.

It is an arithmetic number, because the mean of its divisors is an integer number (452620980).

Almost surely, 2^11131100120 is an apocalyptic number.

11131100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11131100120 is an abundant number, since it is smaller than the sum of its proper divisors (17836642600).

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

11131100120 is a wasteful number, since it uses less digits than its factorization.

11131100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479064 (or 479060 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 11131100120 its reverse (2100113111), we get a palindrome (13231213231).

The spelling of 11131100120 in words is "eleven billion, one hundred thirty-one million, one hundred thousand, one hundred twenty".