20002001121163 has 2 divisors, whose sum is σ = 20002001121164. Its totient is φ = 20002001121162.

The previous prime is 20002001121143. The next prime is 20002001121247. The reversal of 20002001121163 is 36112110020002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20002001121163 - 2³³ = 19993411186571 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20002001121163.

It is not a weakly prime, because it can be changed into another prime (20002001121143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001000560581 + 10001000560582.

It is an arithmetic number, because the mean of its divisors is an integer number (10001000560582).

Almost surely, 2^{20002001121163} is an apocalyptic number.

20002001121163 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002001121163 is an equidigital number, since it uses as much as digits as its factorization.

20002001121163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20002001121163 its reverse (36112110020002), we get a palindrome (56114111141165).

The spelling of 20002001121163 in words is "twenty trillion, two billion, one million, one hundred twenty-one thousand, one hundred sixty-three".