110011111155 has 48 divisors (see below), whose sum is σ = 209398775040. Its totient is φ = 52985448000.

The previous prime is 110011111103. The next prime is 110011111159. The reversal of 110011111155 is 551111110011.

It is not a de Polignac number, because 110011111155 - 2¹¹ = 110011109107 is a prime.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (110011111159) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 661165 + ... + 810654.

It is an arithmetic number, because the mean of its divisors is an integer number (4362474480).

Almost surely, 2^110011111155 is an apocalyptic number.

110011111155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

110011111155 is a deficient number, since it is larger than the sum of its proper divisors (99387663885).

110011111155 is a wasteful number, since it uses less digits than its factorization.

110011111155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471992 (or 1471989 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 18.

Adding to 110011111155 its reverse (551111110011), we get a palindrome (661122221166).

The spelling of 110011111155 in words is "one hundred ten billion, eleven million, one hundred eleven thousand, one hundred fifty-five".