9980109911 has 2 divisors, whose sum is σ = 9980109912. Its totient is φ = 9980109910.

The previous prime is 9980109859. The next prime is 9980109977. The reversal of 9980109911 is 1199010899.

It is a happy number.

9980109911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (1199010899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9980109911 - 2¹⁴ = 9980093527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9980109991) 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, 4990054955 + 4990054956.

It is an arithmetic number, because the mean of its divisors is an integer number (4990054956).

Almost surely, 2^9980109911 is an apocalyptic number.

9980109911 is a deficient number, since it is larger than the sum of its proper divisors (1).

9980109911 is an equidigital number, since it uses as much as digits as its factorization.

9980109911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 47.

The square root of 9980109911 is about 99900.5000538035. The cubic root of 9980109911 is about 2153.0053453619.

The spelling of 9980109911 in words is "nine billion, nine hundred eighty million, one hundred nine thousand, nine hundred eleven".