91122325331 has 2 divisors, whose sum is σ = 91122325332. Its totient is φ = 91122325330.

The previous prime is 91122325223. The next prime is 91122325363. The reversal of 91122325331 is 13352322119.

It is an a-pointer prime, because the next prime (91122325363) can be obtained adding 91122325331 to its sum of digits (32).

It is a strong prime.

It is an emirp because it is prime and its reverse (13352322119) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91122325331 - 2²⁶ = 91055216467 is a prime.

It is a super-2 number, since 2×91122325331² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (91122325631) 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, 45561162665 + 45561162666.

It is an arithmetic number, because the mean of its divisors is an integer number (45561162666).

Almost surely, 2^91122325331 is an apocalyptic number.

91122325331 is a deficient number, since it is larger than the sum of its proper divisors (1).

91122325331 is an equidigital number, since it uses as much as digits as its factorization.

91122325331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 32.

The spelling of 91122325331 in words is "ninety-one billion, one hundred twenty-two million, three hundred twenty-five thousand, three hundred thirty-one".