100011100099991 has 2 divisors, whose sum is σ = 100011100099992. Its totient is φ = 100011100099990.

The previous prime is 100011100099979. The next prime is 100011100100003. The reversal of 100011100099991 is 199990001110001.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (100011100099979) and next prime (100011100100003).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100011100099991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100011100090991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50005550049995 + 50005550049996.

It is an arithmetic number, because the mean of its divisors is an integer number (50005550049996).

Almost surely, 2^{100011100099991} is an apocalyptic number.

100011100099991 is a deficient number, since it is larger than the sum of its proper divisors (1).

100011100099991 is an equidigital number, since it uses as much as digits as its factorization.

100011100099991 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 100011100099991 in words is "one hundred trillion, eleven billion, one hundred million, ninety-nine thousand, nine hundred ninety-one".