12321003109 has 2 divisors, whose sum is σ = 12321003110. Its totient is φ = 12321003108.

The previous prime is 12321003091. The next prime is 12321003119. The reversal of 12321003109 is 90130012321.

Together with previous prime (12321003091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7846062084 + 4474941025 = 88578^2 + 66895^2 .

It is a cyclic number.

It is not a de Polignac number, because 12321003109 - 2²¹ = 12318905957 is a prime.

It is a super-2 number, since 2×12321003109² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12321003109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12321003119) 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, 6160501554 + 6160501555.

It is an arithmetic number, because the mean of its divisors is an integer number (6160501555).

Almost surely, 2^12321003109 is an apocalyptic number.

It is an amenable number.

12321003109 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321003109 is an equidigital number, since it uses as much as digits as its factorization.

12321003109 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 12321003109 in words is "twelve billion, three hundred twenty-one million, three thousand, one hundred nine".