111102100111111 has 4 divisors (see below), whose sum is σ = 112508455808800. Its totient is φ = 109695744413424.

The previous prime is 111102100111087. The next prime is 111102100111201. The reversal of 111102100111111 is 111111001201111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111102100111111 - 2¹³ = 111102100102919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111102100111091 and 111102100111100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111102100117111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 703177848726 + ... + 703177848883.

It is an arithmetic number, because the mean of its divisors is an integer number (28127113952200).

Almost surely, 2^{111102100111111} is an apocalyptic number.

111102100111111 is a deficient number, since it is larger than the sum of its proper divisors (1406355697689).

111102100111111 is an equidigital number, since it uses as much as digits as its factorization.

111102100111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406355697688.

The product of its (nonzero) digits is 2, while the sum is 13.

Adding to 111102100111111 its reverse (111111001201111), we get a palindrome (222213101312222).

The spelling of 111102100111111 in words is "one hundred eleven trillion, one hundred two billion, one hundred million, one hundred eleven thousand, one hundred eleven".