111102101120 has 64 divisors (see below), whose sum is σ = 269957710440. Its totient is φ = 43712286720.

The previous prime is 111102101039. The next prime is 111102101137. The reversal of 111102101120 is 21101201111.

It can be written as a sum of positive squares in 4 ways, for example, as 19912596544 + 91189504576 = 141112^2 + 301976^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1383887 + ... + 1461966.

Almost surely, 2^111102101120 is an apocalyptic number.

111102101120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111102101120 is an abundant number, since it is smaller than the sum of its proper divisors (158855609320).

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

111102101120 is an equidigital number, since it uses as much as digits as its factorization.

111102101120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2845933 (or 2845921 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111102101120 its reverse (21101201111), we get a palindrome (132203302231).

Subtracting from 111102101120 its reverse (21101201111), we obtain a palindrome (90000900009).

The spelling of 111102101120 in words is "one hundred eleven billion, one hundred two million, one hundred one thousand, one hundred twenty".