20012443001242 has 8 divisors (see below), whose sum is σ = 30202828088256. Its totient is φ = 9944833638492.

The previous prime is 20012443001149. The next prime is 20012443001261. The reversal of 20012443001242 is 24210034421002.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 30693930658 + ... + 30693931309.

It is an arithmetic number, because the mean of its divisors is an integer number (3775353511032).

Almost surely, 2^{20012443001242} is an apocalyptic number.

20012443001242 is a deficient number, since it is larger than the sum of its proper divisors (10190385087014).

20012443001242 is a wasteful number, since it uses less digits than its factorization.

20012443001242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61387862132.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20012443001242 its reverse (24210034421002), we get a palindrome (44222477422244).

The spelling of 20012443001242 in words is "twenty trillion, twelve billion, four hundred forty-three million, one thousand, two hundred forty-two".