20042024204021 has 4 divisors (see below), whose sum is σ = 21096867583200. Its totient is φ = 18987180824844.

The previous prime is 20042024204011. The next prime is 20042024204093. The reversal of 20042024204021 is 12040242024002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20042024204021 - 2¹⁰ = 20042024202997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20042024204011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527421689561 + ... + 527421689598.

It is an arithmetic number, because the mean of its divisors is an integer number (5274216895800).

Almost surely, 2^{20042024204021} is an apocalyptic number.

It is an amenable number.

20042024204021 is a deficient number, since it is larger than the sum of its proper divisors (1054843379179).

20042024204021 is a wasteful number, since it uses less digits than its factorization.

20042024204021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054843379178.

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 20042024204021 its reverse (12040242024002), we get a palindrome (32082266228023).

The spelling of 20042024204021 in words is "twenty trillion, forty-two billion, twenty-four million, two hundred four thousand, twenty-one".