12321121021127 has 2 divisors, whose sum is σ = 12321121021128. Its totient is φ = 12321121021126.

The previous prime is 12321121021087. The next prime is 12321121021151. The reversal of 12321121021127 is 72112012112321.

12321121021127 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12321121021127 - 2²⁶ = 12321053912263 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12321121021096 and 12321121021105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12321121024127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160560510563 + 6160560510564.

It is an arithmetic number, because the mean of its divisors is an integer number (6160560510564).

Almost surely, 2^{12321121021127} is an apocalyptic number.

12321121021127 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321121021127 is an equidigital number, since it uses as much as digits as its factorization.

12321121021127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 26.

Adding to 12321121021127 its reverse (72112012112321), we get a palindrome (84433133133448).

The spelling of 12321121021127 in words is "twelve trillion, three hundred twenty-one billion, one hundred twenty-one million, twenty-one thousand, one hundred twenty-seven".