12321233523121 has 2 divisors, whose sum is σ = 12321233523122. Its totient is φ = 12321233523120.

The previous prime is 12321233523041. The next prime is 12321233523133. The reversal of 12321233523121 is 12132533212321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11333396313121 + 987837210000 = 3366511^2 + 993900^2 .

It is an emirp because it is prime and its reverse (12132533212321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12321233523121 - 2¹³ = 12321233514929 is a prime.

It is not a weakly prime, because it can be changed into another prime (12321233524121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160616761560 + 6160616761561.

It is an arithmetic number, because the mean of its divisors is an integer number (6160616761561).

Almost surely, 2^{12321233523121} is an apocalyptic number.

It is an amenable number.

12321233523121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321233523121 is an equidigital number, since it uses as much as digits as its factorization.

12321233523121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 31.

Adding to 12321233523121 its reverse (12132533212321), we get a palindrome (24453766735442).

The spelling of 12321233523121 in words is "twelve trillion, three hundred twenty-one billion, two hundred thirty-three million, five hundred twenty-three thousand, one hundred twenty-one".