20113144242 has 32 divisors (see below), whose sum is σ = 42025452480. Its totient is φ = 6409099200.

The previous prime is 20113144199. The next prime is 20113144283. The reversal of 20113144242 is 24244131102.

It is an unprimeable number.

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, 554668 + ... + 589815.

It is an arithmetic number, because the mean of its divisors is an integer number (1313295390).

Almost surely, 2^20113144242 is an apocalyptic number.

20113144242 is an abundant number, since it is smaller than the sum of its proper divisors (21912308238).

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

20113144242 is a wasteful number, since it uses less digits than its factorization.

20113144242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144618.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 20113144242 its reverse (24244131102), we get a palindrome (44357275344).

The spelling of 20113144242 in words is "twenty billion, one hundred thirteen million, one hundred forty-four thousand, two hundred forty-two".