111101100101100 has 72 divisors (see below), whose sum is σ = 357169462555920. Its totient is φ = 29626960026240.

The previous prime is 111101100101083. The next prime is 111101100101161. The reversal of 111101100101100 is 1101001101111.

It is a Harshad number since it is a multiple of its sum of digits (9).

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, 20574275097 + ... + 20574280496.

Almost surely, 2^{111101100101100} is an apocalyptic number.

111101100101100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111101100101100 is an abundant number, since it is smaller than the sum of its proper divisors (246068362454820).

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

111101100101100 is a wasteful number, since it uses less digits than its factorization.

111101100101100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41148555616 (or 41148555603 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 111101100101100 its reverse (1101001101111), we get a palindrome (112202101202211).

The spelling of 111101100101100 in words is "one hundred eleven trillion, one hundred one billion, one hundred million, one hundred one thousand, one hundred".