10011099999991 has 2 divisors, whose sum is σ = 10011099999992. Its totient is φ = 10011099999990.

The previous prime is 10011099999977. The next prime is 10011100000051. The reversal of 10011099999991 is 19999999011001.

It is a weak prime.

It is an emirp because it is prime and its reverse (19999999011001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10011099999991 - 2²⁵ = 10011066445559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10011099999091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005549999995 + 5005549999996.

It is an arithmetic number, because the mean of its divisors is an integer number (5005549999996).

Almost surely, 2^{10011099999991} is an apocalyptic number.

10011099999991 is a deficient number, since it is larger than the sum of its proper divisors (1).

10011099999991 is an equidigital number, since it uses as much as digits as its factorization.

10011099999991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4782969, while the sum is 67.

The spelling of 10011099999991 in words is "ten trillion, eleven billion, ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-one".