12443333129 has 2 divisors, whose sum is σ = 12443333130. Its totient is φ = 12443333128.

The previous prime is 12443333117. The next prime is 12443333153. The reversal of 12443333129 is 92133334421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12437379529 + 5953600 = 111523^2 + 2440^2 .

It is a cyclic number.

It is not a de Polignac number, because 12443333129 - 2¹² = 12443329033 is a prime.

It is not a weakly prime, because it can be changed into another prime (12443333179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6221666564 + 6221666565.

It is an arithmetic number, because the mean of its divisors is an integer number (6221666565).

Almost surely, 2^12443333129 is an apocalyptic number.

It is an amenable number.

12443333129 is a deficient number, since it is larger than the sum of its proper divisors (1).

12443333129 is an equidigital number, since it uses as much as digits as its factorization.

12443333129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 35.

The spelling of 12443333129 in words is "twelve billion, four hundred forty-three million, three hundred thirty-three thousand, one hundred twenty-nine".