20024120321 has 8 divisors (see below), whose sum is σ = 20972416320. Its totient is φ = 19082297872.

The previous prime is 20024120309. The next prime is 20024120341. The reversal of 20024120321 is 12302142002.

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 20024120321 - 2³⁰ = 18950378497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20024120321.

It is not an unprimeable number, because it can be changed into a prime (20024120341) 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, 1612055 + ... + 1624428.

It is an arithmetic number, because the mean of its divisors is an integer number (2621552040).

Almost surely, 2^20024120321 is an apocalyptic number.

It is an amenable number.

20024120321 is a deficient number, since it is larger than the sum of its proper divisors (948295999).

20024120321 is a wasteful number, since it uses less digits than its factorization.

20024120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3236775.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20024120321 its reverse (12302142002), we get a palindrome (32326262323).

The spelling of 20024120321 in words is "twenty billion, twenty-four million, one hundred twenty thousand, three hundred twenty-one".