12133647520321 has 2 divisors, whose sum is σ = 12133647520322. Its totient is φ = 12133647520320.

The previous prime is 12133647520297. The next prime is 12133647520343. The reversal of 12133647520321 is 12302574633121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11148680593296 + 984966927025 = 3338964^2 + 992455^2 .

It is a cyclic number.

It is not a de Polignac number, because 12133647520321 - 2⁹ = 12133647519809 is a prime.

It is not a weakly prime, because it can be changed into another prime (12133647520361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6066823760160 + 6066823760161.

It is an arithmetic number, because the mean of its divisors is an integer number (6066823760161).

Almost surely, 2^{12133647520321} is an apocalyptic number.

It is an amenable number.

12133647520321 is a deficient number, since it is larger than the sum of its proper divisors (1).

12133647520321 is an equidigital number, since it uses as much as digits as its factorization.

12133647520321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 12133647520321 in words is "twelve trillion, one hundred thirty-three billion, six hundred forty-seven million, five hundred twenty thousand, three hundred twenty-one".