113509416991 has 2 divisors, whose sum is σ = 113509416992. Its totient is φ = 113509416990.

The previous prime is 113509416953. The next prime is 113509417057. The reversal of 113509416991 is 199614905311.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113509416991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113509416191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56754708495 + 56754708496.

It is an arithmetic number, because the mean of its divisors is an integer number (56754708496).

Almost surely, 2^113509416991 is an apocalyptic number.

113509416991 is a deficient number, since it is larger than the sum of its proper divisors (1).

113509416991 is an equidigital number, since it uses as much as digits as its factorization.

113509416991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 262440, while the sum is 49.

The spelling of 113509416991 in words is "one hundred thirteen billion, five hundred nine million, four hundred sixteen thousand, nine hundred ninety-one".