111231211103 has 8 divisors (see below), whose sum is σ = 112277975040. Its totient is φ = 110184581080.

The previous prime is 111231211067. The next prime is 111231211127. The reversal of 111231211103 is 301112132111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111231211103 - 2¹⁴ = 111231194719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111231211183) 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 7 ways as a sum of consecutive naturals, for example, 2612258 + ... + 2654496.

It is an arithmetic number, because the mean of its divisors is an integer number (14034746880).

Almost surely, 2^111231211103 is an apocalyptic number.

111231211103 is a deficient number, since it is larger than the sum of its proper divisors (1046763937).

111231211103 is a wasteful number, since it uses less digits than its factorization.

111231211103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66957.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 111231211103 its reverse (301112132111), we get a palindrome (412343343214).

The spelling of 111231211103 in words is "one hundred eleven billion, two hundred thirty-one million, two hundred eleven thousand, one hundred three".