111011111111100 has 72 divisors (see below), whose sum is σ = 329873017049968. Its totient is φ = 28802882880000.

The previous prime is 111011111111083. The next prime is 111011111111119. The reversal of 111011111111100 is 1111111110111.

111011111111100 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×111011111111100³ (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5000489401 + ... + 5000511600.

Almost surely, 2^{111011111111100} is an apocalyptic number.

111011111111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111011111111100 is an abundant number, since it is smaller than the sum of its proper divisors (218861905938868).

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

111011111111100 is a wasteful number, since it uses less digits than its factorization.

111011111111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10001001055 (or 10001001048 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 12.

Adding to 111011111111100 its reverse (1111111110111), we get a palindrome (112122222221211).

It can be divided in two parts, 111011 and 111111100, that added together give a palindrome (111222111).

The spelling of 111011111111100 in words is "one hundred eleven trillion, eleven billion, one hundred eleven million, one hundred eleven thousand, one hundred".