200020231321 has 2 divisors, whose sum is σ = 200020231322. Its totient is φ = 200020231320.

The previous prime is 200020231273. The next prime is 200020231339. The reversal of 200020231321 is 123132020002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166186675600 + 33833555721 = 407660^2 + 183939^2 .

It is a cyclic number.

It is not a de Polignac number, because 200020231321 - 2²³ = 200011842713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200020231295 and 200020231304.

It is not a weakly prime, because it can be changed into another prime (200020231351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100010115660 + 100010115661.

It is an arithmetic number, because the mean of its divisors is an integer number (100010115661).

Almost surely, 2^200020231321 is an apocalyptic number.

It is an amenable number.

200020231321 is a deficient number, since it is larger than the sum of its proper divisors (1).

200020231321 is an equidigital number, since it uses as much as digits as its factorization.

200020231321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 200020231321 its reverse (123132020002), we get a palindrome (323152251323).

The spelling of 200020231321 in words is "two hundred billion, twenty million, two hundred thirty-one thousand, three hundred twenty-one".