12342143129 has 2 divisors, whose sum is σ = 12342143130. Its totient is φ = 12342143128.

The previous prime is 12342143113. The next prime is 12342143131. The reversal of 12342143129 is 92134124321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11802649600 + 539493529 = 108640^2 + 23227^2 .

It is a cyclic number.

It is not a de Polignac number, because 12342143129 - 2⁴ = 12342143113 is a prime.

Together with 12342143131, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12342143095 and 12342143104.

It is not a weakly prime, because it can be changed into another prime (12342143029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6171071564 + 6171071565.

It is an arithmetic number, because the mean of its divisors is an integer number (6171071565).

Almost surely, 2^12342143129 is an apocalyptic number.

It is an amenable number.

12342143129 is a deficient number, since it is larger than the sum of its proper divisors (1).

12342143129 is an equidigital number, since it uses as much as digits as its factorization.

12342143129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 32.

The spelling of 12342143129 in words is "twelve billion, three hundred forty-two million, one hundred forty-three thousand, one hundred twenty-nine".