30142433112 has 128 divisors (see below), whose sum is σ = 89325158400. Its totient is φ = 8374147200.

The previous prime is 30142433077. The next prime is 30142433129. The reversal of 30142433112 is 21133424103.

It is a happy number.

It is a super-2 number, since 2×30142433112² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58573 + ... + 252419.

It is an arithmetic number, because the mean of its divisors is an integer number (697852800).

Almost surely, 2^30142433112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30142433112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44662579200).

30142433112 is an abundant number, since it is smaller than the sum of its proper divisors (59182725288).

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

30142433112 is a wasteful number, since it uses less digits than its factorization.

30142433112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193917 (or 193913 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 30142433112 its reverse (21133424103), we get a palindrome (51275857215).

Subtracting from 30142433112 its reverse (21133424103), we obtain a palindrome (9009009009).

The spelling of 30142433112 in words is "thirty billion, one hundred forty-two million, four hundred thirty-three thousand, one hundred twelve".