10011010099991 has 2 divisors, whose sum is σ = 10011010099992. Its totient is φ = 10011010099990.

The previous prime is 10011010099967. The next prime is 10011010100059. The reversal of 10011010099991 is 19999001011001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10011010099991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10011010099691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005505049995 + 5005505049996.

It is an arithmetic number, because the mean of its divisors is an integer number (5005505049996).

Almost surely, 2^{10011010099991} is an apocalyptic number.

10011010099991 is a deficient number, since it is larger than the sum of its proper divisors (1).

10011010099991 is an equidigital number, since it uses as much as digits as its factorization.

10011010099991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6561, while the sum is 41.

The spelling of 10011010099991 in words is "ten trillion, eleven billion, ten million, ninety-nine thousand, nine hundred ninety-one".