12320123323121 has 2 divisors, whose sum is σ = 12320123323122. Its totient is φ = 12320123323120.

The previous prime is 12320123322971. The next prime is 12320123323181. The reversal of 12320123323121 is 12132332102321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11330386852096 + 989736471025 = 3366064^2 + 994855^2 .

It is a cyclic number.

It is not a de Polignac number, because 12320123323121 - 2¹⁴ = 12320123306737 is a prime.

It is not a weakly prime, because it can be changed into another prime (12320123323181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160061661560 + 6160061661561.

It is an arithmetic number, because the mean of its divisors is an integer number (6160061661561).

Almost surely, 2^{12320123323121} is an apocalyptic number.

It is an amenable number.

12320123323121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12320123323121 is an equidigital number, since it uses as much as digits as its factorization.

12320123323121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 12320123323121 its reverse (12132332102321), we get a palindrome (24452455425442).

The spelling of 12320123323121 in words is "twelve trillion, three hundred twenty billion, one hundred twenty-three million, three hundred twenty-three thousand, one hundred twenty-one".