2113343100991 has 2 divisors, whose sum is σ = 2113343100992. Its totient is φ = 2113343100990.

The previous prime is 2113343100983. The next prime is 2113343101027. The reversal of 2113343100991 is 1990013433112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2113343100991 - 2³ = 2113343100983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2113343100991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2113343100941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056671550495 + 1056671550496.

It is an arithmetic number, because the mean of its divisors is an integer number (1056671550496).

Almost surely, 2^{2113343100991} is an apocalyptic number.

2113343100991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113343100991 is an equidigital number, since it uses as much as digits as its factorization.

2113343100991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 37.

The spelling of 2113343100991 in words is "two trillion, one hundred thirteen billion, three hundred forty-three million, one hundred thousand, nine hundred ninety-one".