20042231112 has 320 divisors, whose sum is σ = 59276448000. Its totient is φ = 6321908736.

The previous prime is 20042231089. The next prime is 20042231123. The reversal of 20042231112 is 21113224002.

It is a happy number.

20042231112 is a `hidden beast` number, since 200 + 422 + 31 + 1 + 12 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 225193564 + ... + 225193652.

It is an arithmetic number, because the mean of its divisors is an integer number (185238900).

Almost surely, 2^20042231112 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 20042231112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29638224000).

20042231112 is an abundant number, since it is smaller than the sum of its proper divisors (39234216888).

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

20042231112 is a wasteful number, since it uses less digits than its factorization.

20042231112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20042231112 its reverse (21113224002), we get a palindrome (41155455114).

The spelling of 20042231112 in words is "twenty billion, forty-two million, two hundred thirty-one thousand, one hundred twelve".