111240102111 has 8 divisors (see below), whose sum is σ = 148322749104. Its totient is φ = 74158761600.

The previous prime is 111240102109. The next prime is 111240102119. The reversal of 111240102111 is 111201042111.

It is a happy number.

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

It is not a de Polignac number, because 111240102111 - 2¹ = 111240102109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111240102119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106816 + ... + 483621.

It is an arithmetic number, because the mean of its divisors is an integer number (18540343638).

Almost surely, 2^111240102111 is an apocalyptic number.

111240102111 is a deficient number, since it is larger than the sum of its proper divisors (37082646993).

111240102111 is an equidigital number, since it uses as much as digits as its factorization.

111240102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653241.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111240102111 its reverse (111201042111), we get a palindrome (222441144222).

The spelling of 111240102111 in words is "one hundred eleven billion, two hundred forty million, one hundred two thousand, one hundred eleven".