20444013003142 has 16 divisors (see below), whose sum is σ = 30784517103312. Its totient is φ = 10182565009440.

The previous prime is 20444013003137. The next prime is 20444013003187. The reversal of 20444013003142 is 24130031044402.

It is a self number, because there is not a number n which added to its sum of digits gives 20444013003142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13717593 + ... + 15134740.

It is an arithmetic number, because the mean of its divisors is an integer number (1924032318957).

Almost surely, 2^{20444013003142} is an apocalyptic number.

20444013003142 is a deficient number, since it is larger than the sum of its proper divisors (10340504100170).

20444013003142 is a wasteful number, since it uses less digits than its factorization.

20444013003142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28853703.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 20444013003142 its reverse (24130031044402), we get a palindrome (44574044047544).

The spelling of 20444013003142 in words is "twenty trillion, four hundred forty-four billion, thirteen million, three thousand, one hundred forty-two".