12352121121029 has 2 divisors, whose sum is σ = 12352121121030. Its totient is φ = 12352121121028.

The previous prime is 12352121120921. The next prime is 12352121121061. The reversal of 12352121121029 is 92012112125321.

Together with previous prime (12352121120921) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (12352121121061) can be obtained adding 12352121121029 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12217191996100 + 134929124929 = 3495310^2 + 367327^2 .

It is a cyclic number.

It is not a de Polignac number, because 12352121121029 - 2¹⁶ = 12352121055493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12352121120986 and 12352121121004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12352123121029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6176060560514 + 6176060560515.

It is an arithmetic number, because the mean of its divisors is an integer number (6176060560515).

Almost surely, 2^{12352121121029} is an apocalyptic number.

It is an amenable number.

12352121121029 is a deficient number, since it is larger than the sum of its proper divisors (1).

12352121121029 is an equidigital number, since it uses as much as digits as its factorization.

12352121121029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 32.

The spelling of 12352121121029 in words is "twelve trillion, three hundred fifty-two billion, one hundred twenty-one million, one hundred twenty-one thousand, twenty-nine".