11112140142 has 32 divisors (see below), whose sum is σ = 24702312960. Its totient is φ = 3702746520.

The previous prime is 11112140069. The next prime is 11112140159. The reversal of 11112140142 is 24104121111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125803 + ... + 195065.

It is an arithmetic number, because the mean of its divisors is an integer number (771947280).

Almost surely, 2^11112140142 is an apocalyptic number.

11112140142 is an abundant number, since it is smaller than the sum of its proper divisors (13590172818).

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

11112140142 is a wasteful number, since it uses less digits than its factorization.

11112140142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72245 (or 72239 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11112140142 its reverse (24104121111), we get a palindrome (35216261253).

The spelling of 11112140142 in words is "eleven billion, one hundred twelve million, one hundred forty thousand, one hundred forty-two".