111102102 has 24 divisors (see below), whose sum is σ = 241254936. Its totient is φ = 36951936.

The previous prime is 111102097. The next prime is 111102119. The reversal of 111102102 is 201201111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1798 + ... + 15014.

It is an arithmetic number, because the mean of its divisors is an integer number (10052289).

Almost surely, 2^111102102 is an apocalyptic number.

111102102 is an abundant number, since it is smaller than the sum of its proper divisors (130152834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111102102 is a wasteful number, since it uses less digits than its factorization.

111102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13692 (or 13689 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 111102102 is about 10540.4981855698. The cubic root of 111102102 is about 480.7368630313.

Adding to 111102102 its reverse (201201111), we get a palindrome (312303213).

Subtracting 111102102 from its reverse (201201111), we obtain a palindrome (90099009).

The spelling of 111102102 in words is "one hundred eleven million, one hundred two thousand, one hundred two".