20121120200063 has 2 divisors, whose sum is σ = 20121120200064. Its totient is φ = 20121120200062.

The previous prime is 20121120200033. The next prime is 20121120200261. The reversal of 20121120200063 is 36000202112102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20121120200063 - 2¹⁰ = 20121120199039 is a prime.

It is a super-2 number, since 2×20121120200063² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20121120200033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060560100031 + 10060560100032.

It is an arithmetic number, because the mean of its divisors is an integer number (10060560100032).

Almost surely, 2^{20121120200063} is an apocalyptic number.

20121120200063 is a deficient number, since it is larger than the sum of its proper divisors (1).

20121120200063 is an equidigital number, since it uses as much as digits as its factorization.

20121120200063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20121120200063 its reverse (36000202112102), we get a palindrome (56121322312165).

The spelling of 20121120200063 in words is "twenty trillion, one hundred twenty-one billion, one hundred twenty million, two hundred thousand, sixty-three".