4143421129 has 2 divisors, whose sum is σ = 4143421130. Its totient is φ = 4143421128.

The previous prime is 4143421127. The next prime is 4143421147. The reversal of 4143421129 is 9211243414.

4143421129 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3008741904 + 1134679225 = 54852^2 + 33685^2 .

It is a cyclic number.

It is not a de Polignac number, because 4143421129 - 2¹ = 4143421127 is a prime.

Together with 4143421127, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4143421129.

It is not a weakly prime, because it can be changed into another prime (4143421127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2071710564 + 2071710565.

It is an arithmetic number, because the mean of its divisors is an integer number (2071710565).

Almost surely, 2^4143421129 is an apocalyptic number.

It is an amenable number.

4143421129 is a deficient number, since it is larger than the sum of its proper divisors (1).

4143421129 is an equidigital number, since it uses as much as digits as its factorization.

4143421129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 31.

The square root of 4143421129 is about 64369.4114389746. The cubic root of 4143421129 is about 1606.1509495079.

The spelling of 4143421129 in words is "four billion, one hundred forty-three million, four hundred twenty-one thousand, one hundred twenty-nine".