111142102 has 8 divisors (see below), whose sum is σ = 167240016. Its totient is φ = 55395432.

The previous prime is 111142093. The next prime is 111142127. The reversal of 111142102 is 201241111.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87018 + ... + 88285.

It is an arithmetic number, because the mean of its divisors is an integer number (20905002).

Almost surely, 2^111142102 is an apocalyptic number.

111142102 is a deficient number, since it is larger than the sum of its proper divisors (56097914).

111142102 is a wasteful number, since it uses less digits than its factorization.

111142102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175622.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 111142102 is about 10542.3954583387. The cubic root of 111142102 is about 480.7945492104.

Adding to 111142102 its reverse (201241111), we get a palindrome (312383213).

Subtracting 111142102 from its reverse (201241111), we obtain a palindrome (90099009).

The spelling of 111142102 in words is "one hundred eleven million, one hundred forty-two thousand, one hundred two".