9901111093717 has 2 divisors, whose sum is σ = 9901111093718. Its totient is φ = 9901111093716.

The previous prime is 9901111093703. The next prime is 9901111093723. The reversal of 9901111093717 is 7173901111099.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7217572394916 + 2683538698801 = 2686554^2 + 1638151^2 .

It is a cyclic number.

It is not a de Polignac number, because 9901111093717 - 2⁷ = 9901111093589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9901111093777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4950555546858 + 4950555546859.

It is an arithmetic number, because the mean of its divisors is an integer number (4950555546859).

Almost surely, 2^{9901111093717} is an apocalyptic number.

It is an amenable number.

9901111093717 is a deficient number, since it is larger than the sum of its proper divisors (1).

9901111093717 is an equidigital number, since it uses as much as digits as its factorization.

9901111093717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107163, while the sum is 49.

The spelling of 9901111093717 in words is "nine trillion, nine hundred one billion, one hundred eleven million, ninety-three thousand, seven hundred seventeen".