12321350120257 has 2 divisors, whose sum is σ = 12321350120258. Its totient is φ = 12321350120256.

The previous prime is 12321350120237. The next prime is 12321350120293. The reversal of 12321350120257 is 75202105312321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11414910931216 + 906439189041 = 3378596^2 + 952071^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12321350120257 is a prime.

It is not a weakly prime, because it can be changed into another prime (12321350120227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160675060128 + 6160675060129.

It is an arithmetic number, because the mean of its divisors is an integer number (6160675060129).

Almost surely, 2^{12321350120257} is an apocalyptic number.

It is an amenable number.

12321350120257 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321350120257 is an equidigital number, since it uses as much as digits as its factorization.

12321350120257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 34.

Adding to 12321350120257 its reverse (75202105312321), we get a palindrome (87523455432578).

The spelling of 12321350120257 in words is "twelve trillion, three hundred twenty-one billion, three hundred fifty million, one hundred twenty thousand, two hundred fifty-seven".