20442401121 has 8 divisors (see below), whose sum is σ = 27312505024. Its totient is φ = 13600282320.

The previous prime is 20442401113. The next prime is 20442401149. The reversal of 20442401121 is 12110424402.

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

It is not a de Polignac number, because 20442401121 - 2³ = 20442401113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20442401171) 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, 6994570 + ... + 6997491.

It is an arithmetic number, because the mean of its divisors is an integer number (3414063128).

Almost surely, 2^20442401121 is an apocalyptic number.

It is an amenable number.

20442401121 is a deficient number, since it is larger than the sum of its proper divisors (6870103903).

20442401121 is a wasteful number, since it uses less digits than its factorization.

20442401121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13992551.

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

Adding to 20442401121 its reverse (12110424402), we get a palindrome (32552825523).

The spelling of 20442401121 in words is "twenty billion, four hundred forty-two million, four hundred one thousand, one hundred twenty-one".