12320655909827 has 2 divisors, whose sum is σ = 12320655909828. Its totient is φ = 12320655909826.

The previous prime is 12320655909719. The next prime is 12320655909853. The reversal of 12320655909827 is 72890955602321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12320655909827 - 2¹⁶ = 12320655844291 is a prime.

It is not a weakly prime, because it can be changed into another prime (12320655906827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160327954913 + 6160327954914.

It is an arithmetic number, because the mean of its divisors is an integer number (6160327954914).

Almost surely, 2^{12320655909827} is an apocalyptic number.

12320655909827 is a deficient number, since it is larger than the sum of its proper divisors (1).

12320655909827 is an equidigital number, since it uses as much as digits as its factorization.

12320655909827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16329600, while the sum is 59.

The spelling of 12320655909827 in words is "twelve trillion, three hundred twenty billion, six hundred fifty-five million, nine hundred nine thousand, eight hundred twenty-seven".