2117344522091 has 2 divisors, whose sum is σ = 2117344522092. Its totient is φ = 2117344522090.

The previous prime is 2117344522043. The next prime is 2117344522127. The reversal of 2117344522091 is 1902254437112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2117344522091 is a prime.

It is not a weakly prime, because it can be changed into another prime (2117344522021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058672261045 + 1058672261046.

It is an arithmetic number, because the mean of its divisors is an integer number (1058672261046).

Almost surely, 2^{2117344522091} is an apocalyptic number.

2117344522091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2117344522091 is an equidigital number, since it uses as much as digits as its factorization.

2117344522091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 2117344522091 in words is "two trillion, one hundred seventeen billion, three hundred forty-four million, five hundred twenty-two thousand, ninety-one".