112129543321 has 2 divisors, whose sum is σ = 112129543322. Its totient is φ = 112129543320.

The previous prime is 112129543283. The next prime is 112129543373. The reversal of 112129543321 is 123345921211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70609775625 + 41519767696 = 265725^2 + 203764^2 .

It is an emirp because it is prime and its reverse (123345921211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112129543321 - 2⁷ = 112129543193 is a prime.

It is not a weakly prime, because it can be changed into another prime (112129043321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56064771660 + 56064771661.

It is an arithmetic number, because the mean of its divisors is an integer number (56064771661).

Almost surely, 2^112129543321 is an apocalyptic number.

It is an amenable number.

112129543321 is a deficient number, since it is larger than the sum of its proper divisors (1).

112129543321 is an equidigital number, since it uses as much as digits as its factorization.

112129543321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The spelling of 112129543321 in words is "one hundred twelve billion, one hundred twenty-nine million, five hundred forty-three thousand, three hundred twenty-one".