20044134421 has 8 divisors (see below), whose sum is σ = 20780110080. Its totient is φ = 19311145392.

The previous prime is 20044134401. The next prime is 20044134443. The reversal of 20044134421 is 12443144002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20044134421 - 2¹¹ = 20044132373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20044134401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 732985 + ... + 759838.

It is an arithmetic number, because the mean of its divisors is an integer number (2597513760).

Almost surely, 2^20044134421 is an apocalyptic number.

It is an amenable number.

20044134421 is a deficient number, since it is larger than the sum of its proper divisors (735975659).

20044134421 is a wasteful number, since it uses less digits than its factorization.

20044134421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493315.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20044134421 its reverse (12443144002), we get a palindrome (32487278423).

The spelling of 20044134421 in words is "twenty billion, forty-four million, one hundred thirty-four thousand, four hundred twenty-one".