20341004044421 has 4 divisors (see below), whose sum is σ = 20341502407200. Its totient is φ = 20340505681644.

The previous prime is 20341004044391. The next prime is 20341004044429. The reversal of 20341004044421 is 12444040014302.

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 a de Polignac number, because none of the positive numbers 2^k-20341004044421 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 (20341004044429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249120161 + ... + 249201798.

It is an arithmetic number, because the mean of its divisors is an integer number (5085375601800).

Almost surely, 2^{20341004044421} is an apocalyptic number.

It is an amenable number.

20341004044421 is a deficient number, since it is larger than the sum of its proper divisors (498362779).

20341004044421 is an equidigital number, since it uses as much as digits as its factorization.

20341004044421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498362778.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 20341004044421 its reverse (12444040014302), we get a palindrome (32785044058723).

The spelling of 20341004044421 in words is "twenty trillion, three hundred forty-one billion, four million, forty-four thousand, four hundred twenty-one".