20042411421 has 8 divisors (see below), whose sum is σ = 28129700320. Its totient is φ = 12658365072.

The previous prime is 20042411419. The next prime is 20042411461. The reversal of 20042411421 is 12411424002.

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

It is not a de Polignac number, because 20042411421 - 2¹ = 20042411419 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 (20042411461) 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, 175810570 + ... + 175810683.

It is an arithmetic number, because the mean of its divisors is an integer number (3516212540).

Almost surely, 2^20042411421 is an apocalyptic number.

It is an amenable number.

20042411421 is a deficient number, since it is larger than the sum of its proper divisors (8087288899).

20042411421 is a wasteful number, since it uses less digits than its factorization.

20042411421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351621275.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 20042411421 its reverse (12411424002), we get a palindrome (32453835423).

The spelling of 20042411421 in words is "twenty billion, forty-two million, four hundred eleven thousand, four hundred twenty-one".