12010091 has 2 divisors, whose sum is σ = 12010092. Its totient is φ = 12010090.

The previous prime is 12010081. The next prime is 12010093. The reversal of 12010091 is 19001021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12010091 - 2⁶ = 12010027 is a prime.

Together with 12010093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12010093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005045 + 6005046.

It is an arithmetic number, because the mean of its divisors is an integer number (6005046).

Almost surely, 2^12010091 is an apocalyptic number.

12010091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12010091 is an equidigital number, since it uses as much as digits as its factorization.

12010091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 12010091 is about 3465.5578194571. The cubic root of 12010091 is about 229.0070044831.

The spelling of 12010091 in words is "twelve million, ten thousand, ninety-one".