200002321121 has 2 divisors, whose sum is σ = 200002321122. Its totient is φ = 200002321120.

The previous prime is 200002321117. The next prime is 200002321147. The reversal of 200002321121 is 121123200002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101019722896 + 98982598225 = 317836^2 + 314615^2 .

It is a cyclic number.

It is not a de Polignac number, because 200002321121 - 2² = 200002321117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200002321096 and 200002321105.

It is not a weakly prime, because it can be changed into another prime (200002321621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100001160560 + 100001160561.

It is an arithmetic number, because the mean of its divisors is an integer number (100001160561).

Almost surely, 2^200002321121 is an apocalyptic number.

It is an amenable number.

200002321121 is a deficient number, since it is larger than the sum of its proper divisors (1).

200002321121 is an equidigital number, since it uses as much as digits as its factorization.

200002321121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 200002321121 its reverse (121123200002), we get a palindrome (321125521123).

The spelling of 200002321121 in words is "two hundred billion, two million, three hundred twenty-one thousand, one hundred twenty-one".