9768118121 has 2 divisors, whose sum is σ = 9768118122. Its totient is φ = 9768118120.

The previous prime is 9768118079. The next prime is 9768118133. The reversal of 9768118121 is 1218118679.

It is a happy number.

9768118121 is digitally balanced in base 2, 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., 9746625625 + 21492496 = 98725^2 + 4636^2 .

It is an emirp because it is prime and its reverse (1218118679) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9768118121 - 2¹⁴ = 9768101737 is a prime.

It is a super-2 number, since 2×9768118121² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9768118181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4884059060 + 4884059061.

It is an arithmetic number, because the mean of its divisors is an integer number (4884059061).

Almost surely, 2^9768118121 is an apocalyptic number.

It is an amenable number.

9768118121 is a deficient number, since it is larger than the sum of its proper divisors (1).

9768118121 is an equidigital number, since it uses as much as digits as its factorization.

9768118121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 44.

The square root of 9768118121 is about 98833.7903806183. The cubic root of 9768118121 is about 2137.6518134186.

The spelling of 9768118121 in words is "nine billion, seven hundred sixty-eight million, one hundred eighteen thousand, one hundred twenty-one".