9911200110997 has 2 divisors, whose sum is σ = 9911200110998. Its totient is φ = 9911200110996.

The previous prime is 9911200110983. The next prime is 9911200111009. The reversal of 9911200110997 is 7990110021199.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6996442916241 + 2914757194756 = 2645079^2 + 1707266^2 .

It is an emirp because it is prime and its reverse (7990110021199) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9911200110997 - 2⁷ = 9911200110869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9911200110997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9911200110967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4955600055498 + 4955600055499.

It is an arithmetic number, because the mean of its divisors is an integer number (4955600055499).

Almost surely, 2^{9911200110997} is an apocalyptic number.

It is an amenable number.

9911200110997 is a deficient number, since it is larger than the sum of its proper divisors (1).

9911200110997 is an equidigital number, since it uses as much as digits as its factorization.

9911200110997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91854, while the sum is 49.

The spelling of 9911200110997 in words is "nine trillion, nine hundred eleven billion, two hundred million, one hundred ten thousand, nine hundred ninety-seven".