111101142 has 16 divisors (see below), whose sum is σ = 225519552. Its totient is φ = 36480840.

The previous prime is 111101129. The next prime is 111101153. The reversal of 111101142 is 241101111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137784 + ... + 138587.

It is an arithmetic number, because the mean of its divisors is an integer number (14094972).

Almost surely, 2^111101142 is an apocalyptic number.

111101142 is an abundant number, since it is smaller than the sum of its proper divisors (114418410).

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

111101142 is a wasteful number, since it uses less digits than its factorization.

111101142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276443.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 111101142 is about 10540.4526468269. The cubic root of 111101142 is about 480.7354783929.

Adding to 111101142 its reverse (241101111), we get a palindrome (352202253).

The spelling of 111101142 in words is "one hundred eleven million, one hundred one thousand, one hundred forty-two".