20004242321 has 8 divisors (see below), whose sum is σ = 24065254080. Its totient is φ = 16244046288.

The previous prime is 20004242317. The next prime is 20004242347. The reversal of 20004242321 is 12324240002.

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 20004242321 - 2² = 20004242317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20004242293 and 20004242302.

It is not an unprimeable number, because it can be changed into a prime (20004242381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75203786 + ... + 75204051.

It is an arithmetic number, because the mean of its divisors is an integer number (3008156760).

Almost surely, 2^20004242321 is an apocalyptic number.

It is an amenable number.

20004242321 is a deficient number, since it is larger than the sum of its proper divisors (4061011759).

20004242321 is a wasteful number, since it uses less digits than its factorization.

20004242321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150407863.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20004242321 its reverse (12324240002), we get a palindrome (32328482323).

The spelling of 20004242321 in words is "twenty billion, four million, two hundred forty-two thousand, three hundred twenty-one".