20044002405142 has 4 divisors (see below), whose sum is σ = 30066003607716. Its totient is φ = 10022001202570.

The previous prime is 20044002405109. The next prime is 20044002405169. The reversal of 20044002405142 is 24150420044002.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20044002405142.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5011000601284 + ... + 5011000601287.

It is an arithmetic number, because the mean of its divisors is an integer number (7516500901929).

Almost surely, 2^{20044002405142} is an apocalyptic number.

20044002405142 is a deficient number, since it is larger than the sum of its proper divisors (10022001202574).

20044002405142 is a wasteful number, since it uses less digits than its factorization.

20044002405142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10022001202573.

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 20044002405142 its reverse (24150420044002), we get a palindrome (44194422449144).

The spelling of 20044002405142 in words is "twenty trillion, forty-four billion, two million, four hundred five thousand, one hundred forty-two".