20042100520013 has 16 divisors (see below), whose sum is σ = 23560562140416. Its totient is φ = 16808118824640.

The previous prime is 20042100519989. The next prime is 20042100520027. The reversal of 20042100520013 is 31002500124002.

It is not a de Polignac number, because 20042100520013 - 2⁸ = 20042100519757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20042100520063) 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, 43214645 + ... + 43675962.

It is an arithmetic number, because the mean of its divisors is an integer number (1472535133776).

Almost surely, 2^{20042100520013} is an apocalyptic number.

It is an amenable number.

20042100520013 is a deficient number, since it is larger than the sum of its proper divisors (3518461620403).

20042100520013 is a wasteful number, since it uses less digits than its factorization.

20042100520013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86892244.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 20042100520013 its reverse (31002500124002), we get a palindrome (51044600644015).

The spelling of 20042100520013 in words is "twenty trillion, forty-two billion, one hundred million, five hundred twenty thousand, thirteen".