12321003091 has 2 divisors, whose sum is σ = 12321003092. Its totient is φ = 12321003090.

The previous prime is 12321003089. The next prime is 12321003109. The reversal of 12321003091 is 19030012321.

Together with next prime (12321003109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12321003091 - 2¹ = 12321003089 is a prime.

Together with 12321003089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12321003031) 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, 6160501545 + 6160501546.

It is an arithmetic number, because the mean of its divisors is an integer number (6160501546).

Almost surely, 2^12321003091 is an apocalyptic number.

12321003091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321003091 is an equidigital number, since it uses as much as digits as its factorization.

12321003091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The spelling of 12321003091 in words is "twelve billion, three hundred twenty-one million, three thousand, ninety-one".