102000011081 has 2 divisors, whose sum is σ = 102000011082. Its totient is φ = 102000011080.

The previous prime is 102000011059. The next prime is 102000011111. The reversal of 102000011081 is 180110000201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73843171081 + 28156840000 = 271741^2 + 167800^2 .

It is a cyclic number.

It is not a de Polignac number, because 102000011081 - 2²⁶ = 101932902217 is a prime.

It is a super-3 number, since 3×102000011081³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (102000011381) 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, 51000005540 + 51000005541.

It is an arithmetic number, because the mean of its divisors is an integer number (51000005541).

Almost surely, 2^102000011081 is an apocalyptic number.

It is an amenable number.

102000011081 is a deficient number, since it is larger than the sum of its proper divisors (1).

102000011081 is an equidigital number, since it uses as much as digits as its factorization.

102000011081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102000011081 its reverse (180110000201), we get a palindrome (282110011282).

The spelling of 102000011081 in words is "one hundred two billion, eleven thousand, eighty-one".