91111455111119 has 2 divisors, whose sum is σ = 91111455111120. Its totient is φ = 91111455111118.

The previous prime is 91111455111107. The next prime is 91111455111137. The reversal of 91111455111119 is 91111155411119.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91111455111119 is a prime.

It is a super-2 number, since 2×91111455111119² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91111455119119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45555727555559 + 45555727555560.

It is an arithmetic number, because the mean of its divisors is an integer number (45555727555560).

Almost surely, 2^{91111455111119} is an apocalyptic number.

91111455111119 is a deficient number, since it is larger than the sum of its proper divisors (1).

91111455111119 is an equidigital number, since it uses as much as digits as its factorization.

91111455111119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 41.

The spelling of 91111455111119 in words is "ninety-one trillion, one hundred eleven billion, four hundred fifty-five million, one hundred eleven thousand, one hundred nineteen".