20112404242 has 32 divisors (see below), whose sum is σ = 34677964800. Its totient is φ = 8569780560.

The previous prime is 20112404237. The next prime is 20112404243. The reversal of 20112404242 is 24240421102.

It is not an unprimeable number, because it can be changed into a prime (20112404243) by changing a digit.

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, 6147067 + ... + 6150337.

It is an arithmetic number, because the mean of its divisors is an integer number (1083686400).

Almost surely, 2^20112404242 is an apocalyptic number.

20112404242 is a deficient number, since it is larger than the sum of its proper divisors (14565560558).

20112404242 is a wasteful number, since it uses less digits than its factorization.

20112404242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5686.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 20112404242 its reverse (24240421102), we get a palindrome (44352825344).

The spelling of 20112404242 in words is "twenty billion, one hundred twelve million, four hundred four thousand, two hundred forty-two".