12321101312309 has 2 divisors, whose sum is σ = 12321101312310. Its totient is φ = 12321101312308.

The previous prime is 12321101312281. The next prime is 12321101312323. The reversal of 12321101312309 is 90321310112321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11760029904100 + 561071408209 = 3429290^2 + 749047^2 .

It is a cyclic number.

It is not a de Polignac number, because 12321101312309 - 2⁸ = 12321101312053 is a prime.

It is a super-2 number, since 2×12321101312309² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12321106312309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160550656154 + 6160550656155.

It is an arithmetic number, because the mean of its divisors is an integer number (6160550656155).

Almost surely, 2^{12321101312309} is an apocalyptic number.

It is an amenable number.

12321101312309 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321101312309 is an equidigital number, since it uses as much as digits as its factorization.

12321101312309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 12321101312309 in words is "twelve trillion, three hundred twenty-one billion, one hundred one million, three hundred twelve thousand, three hundred nine".