129234205007 has 2 divisors, whose sum is σ = 129234205008. Its totient is φ = 129234205006.

The previous prime is 129234204989. The next prime is 129234205033. The reversal of 129234205007 is 700502432921.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (700502432921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129234205007 - 2¹² = 129234200911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129234205057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64617102503 + 64617102504.

It is an arithmetic number, because the mean of its divisors is an integer number (64617102504).

Almost surely, 2^129234205007 is an apocalyptic number.

129234205007 is a deficient number, since it is larger than the sum of its proper divisors (1).

129234205007 is an equidigital number, since it uses as much as digits as its factorization.

129234205007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

Adding to 129234205007 its reverse (700502432921), we get a palindrome (829736637928).

The spelling of 129234205007 in words is "one hundred twenty-nine billion, two hundred thirty-four million, two hundred five thousand, seven".