111230030142 has 256 divisors, whose sum is σ = 320694681600. Its totient is φ = 27740119680.

The previous prime is 111230030059. The next prime is 111230030161. The reversal of 111230030142 is 241030032111.

111230030142 is a `hidden beast` number, since 11 + 12 + 300 + 301 + 42 = 666.

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 polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10352209 + ... + 10362947.

It is an arithmetic number, because the mean of its divisors is an integer number (1252713600).

Almost surely, 2^111230030142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111230030142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160347340800).

111230030142 is an abundant number, since it is smaller than the sum of its proper divisors (209464651458).

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

111230030142 is a wasteful number, since it uses less digits than its factorization.

111230030142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10868 (or 10862 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 111230030142 its reverse (241030032111), we get a palindrome (352260062253).

The spelling of 111230030142 in words is "one hundred eleven billion, two hundred thirty million, thirty thousand, one hundred forty-two".