4121168081 has 2 divisors, whose sum is σ = 4121168082. Its totient is φ = 4121168080.

The previous prime is 4121168053. The next prime is 4121168087. The reversal of 4121168081 is 1808611214.

It is a happy number.

4121168081 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3473923600 + 647244481 = 58940^2 + 25441^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4121168081 is a prime.

It is a super-2 number, since 2×4121168081² = 33968052703706445122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4121168087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2060584040 + 2060584041.

It is an arithmetic number, because the mean of its divisors is an integer number (2060584041).

Almost surely, 2^4121168081 is an apocalyptic number.

It is an amenable number.

4121168081 is a deficient number, since it is larger than the sum of its proper divisors (1).

4121168081 is an equidigital number, since it uses as much as digits as its factorization.

4121168081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 32.

The square root of 4121168081 is about 64196.3245131682. The cubic root of 4121168081 is about 1603.2704046092.

Adding to 4121168081 its reverse (1808611214), we get a palindrome (5929779295).

The spelling of 4121168081 in words is "four billion, one hundred twenty-one million, one hundred sixty-eight thousand, eighty-one".