111081180111 has 16 divisors (see below), whose sum is σ = 162022705920. Its totient is φ = 67134393920.

The previous prime is 111081180097. The next prime is 111081180149.

111081180111 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 111081180111 - 2⁵ = 111081180079 is a prime.

111081180111 is a strobogrammatic number because it is the same when read upside-down.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111081180191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4676310 + ... + 4700003.

It is an arithmetic number, because the mean of its divisors is an integer number (10126419120).

Almost surely, 2^111081180111 is an apocalyptic number.

111081180111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111081180111 is a deficient number, since it is larger than the sum of its proper divisors (50941525809).

111081180111 is a wasteful number, since it uses less digits than its factorization.

111081180111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9376686.

The product of its (nonzero) digits is 64, while the sum is 24.

It can be divided in two parts, 111081 and 180111, that added together give a palindrome (291192).

The spelling of 111081180111 in words is "one hundred eleven billion, eighty-one million, one hundred eighty thousand, one hundred eleven".