111331011103 has 16 divisors (see below), whose sum is σ = 120105264160. Its totient is φ = 102586974336.

The previous prime is 111331011101. The next prime is 111331011133. The reversal of 111331011103 is 301110133111.

It is a cyclic number.

It is not a de Polignac number, because 111331011103 - 2¹ = 111331011101 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 (111331011101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35807713 + ... + 35810821.

It is an arithmetic number, because the mean of its divisors is an integer number (7506579010).

Almost surely, 2^111331011103 is an apocalyptic number.

111331011103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

111331011103 is a deficient number, since it is larger than the sum of its proper divisors (8774253057).

111331011103 is a wasteful number, since it uses less digits than its factorization.

111331011103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7066.

The product of its (nonzero) digits is 27, while the sum is 16.

Adding to 111331011103 its reverse (301110133111), we get a palindrome (412441144214).

The spelling of 111331011103 in words is "one hundred eleven billion, three hundred thirty-one million, eleven thousand, one hundred three".