20024210321 has 2 divisors, whose sum is σ = 20024210322. Its totient is φ = 20024210320.

The previous prime is 20024210299. The next prime is 20024210351. The reversal of 20024210321 is 12301242002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13355038096 + 6669172225 = 115564^2 + 81665^2 .

It is a cyclic number.

It is not a de Polignac number, because 20024210321 - 2²⁶ = 19957101457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20024210321.

It is not a weakly prime, because it can be changed into another prime (20024210351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10012105160 + 10012105161.

It is an arithmetic number, because the mean of its divisors is an integer number (10012105161).

Almost surely, 2^20024210321 is an apocalyptic number.

It is an amenable number.

20024210321 is a deficient number, since it is larger than the sum of its proper divisors (1).

20024210321 is an equidigital number, since it uses as much as digits as its factorization.

20024210321 is an odious number, because the sum of its binary digits is odd.

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

Adding to 20024210321 its reverse (12301242002), we get a palindrome (32325452323).

The spelling of 20024210321 in words is "twenty billion, twenty-four million, two hundred ten thousand, three hundred twenty-one".