111420102 has 8 divisors (see below), whose sum is σ = 222840216. Its totient is φ = 37140032.

The previous prime is 111420097. The next prime is 111420109. The reversal of 111420102 is 201024111.

It is a happy number.

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

111420102 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111420109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9285003 + ... + 9285014.

It is an arithmetic number, because the mean of its divisors is an integer number (27855027).

Almost surely, 2^111420102 is an apocalyptic number.

111420102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

111420102 is a wasteful number, since it uses less digits than its factorization.

111420102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18570022.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 111420102 is about 10555.5720830280. The cubic root of 111420102 is about 481.1950862850.

Adding to 111420102 its reverse (201024111), we get a palindrome (312444213).

The spelling of 111420102 in words is "one hundred eleven million, four hundred twenty thousand, one hundred two".