111030102 has 24 divisors (see below), whose sum is σ = 249476136. Its totient is φ = 37009872.

The previous prime is 111030097. The next prime is 111030103. The reversal of 111030102 is 201030111.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111030103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113743 + ... + 114714.

It is an arithmetic number, because the mean of its divisors is an integer number (10394839).

Almost surely, 2^111030102 is an apocalyptic number.

111030102 is an abundant number, since it is smaller than the sum of its proper divisors (138446034).

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

111030102 is an equidigital number, since it uses as much as digits as its factorization.

111030102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228474 (or 228462 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 111030102 is about 10537.0822337116. The cubic root of 111030102 is about 480.6329930078.

Adding to 111030102 its reverse (201030111), we get a palindrome (312060213).

Subtracting 111030102 from its reverse (201030111), we obtain a palindrome (90000009).

The spelling of 111030102 in words is "one hundred eleven million, thirty thousand, one hundred two".