10111101000991 has 2 divisors, whose sum is σ = 10111101000992. Its totient is φ = 10111101000990.

The previous prime is 10111101000929. The next prime is 10111101001117. The reversal of 10111101000991 is 19900010111101.

10111101000991 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 a cyclic number.

It is not a de Polignac number, because 10111101000991 - 2¹³ = 10111100992799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10111101007991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055550500495 + 5055550500496.

It is an arithmetic number, because the mean of its divisors is an integer number (5055550500496).

Almost surely, 2^{10111101000991} is an apocalyptic number.

10111101000991 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111101000991 is an equidigital number, since it uses as much as digits as its factorization.

10111101000991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81, while the sum is 25.

The spelling of 10111101000991 in words is "ten trillion, one hundred eleven billion, one hundred one million, nine hundred ninety-one", and thus it is an aban number.