111142334142 has 40 divisors (see below), whose sum is σ = 284618467056. Its totient is φ = 31754952288.

The previous prime is 111142334101. The next prime is 111142334159. The reversal of 111142334142 is 241433241111.

It is a happy number.

111142334142 is a `hidden beast` number, since 1 + 1 + 1 + 14 + 233 + 414 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 49003423 + ... + 49005690.

Almost surely, 2^111142334142 is an apocalyptic number.

111142334142 is an abundant number, since it is smaller than the sum of its proper divisors (173476132914).

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

111142334142 is an equidigital number, since it uses as much as digits as its factorization.

111142334142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98009134 (or 98009125 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

Adding to 111142334142 its reverse (241433241111), we get a palindrome (352575575253).

The spelling of 111142334142 in words is "one hundred eleven billion, one hundred forty-two million, three hundred thirty-four thousand, one hundred forty-two".