2010000020081 has 2 divisors, whose sum is σ = 2010000020082. Its totient is φ = 2010000020080.

The previous prime is 2010000020071. The next prime is 2010000020089. The reversal of 2010000020081 is 1800200000102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1402471747600 + 607528272481 = 1184260^2 + 779441^2 .

It is a cyclic number.

It is not a de Polignac number, because 2010000020081 - 2³⁰ = 2008926278257 is a prime.

It is a super-2 number, since 2×2010000020081² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2010000020089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005000010040 + 1005000010041.

It is an arithmetic number, because the mean of its divisors is an integer number (1005000010041).

Almost surely, 2^{2010000020081} is an apocalyptic number.

It is an amenable number.

2010000020081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2010000020081 is an equidigital number, since it uses as much as digits as its factorization.

2010000020081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2010000020081 its reverse (1800200000102), we get a palindrome (3810200020183).

The spelling of 2010000020081 in words is "two trillion, ten billion, twenty thousand, eighty-one".