34121213129 has 2 divisors, whose sum is σ = 34121213130. Its totient is φ = 34121213128.

The previous prime is 34121213123. The next prime is 34121213143. The reversal of 34121213129 is 92131212143.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28915302025 + 5205911104 = 170045^2 + 72152^2 .

It is an emirp because it is prime and its reverse (92131212143) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34121213129 is a prime.

It is not a weakly prime, because it can be changed into another prime (34121213123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17060606564 + 17060606565.

It is an arithmetic number, because the mean of its divisors is an integer number (17060606565).

Almost surely, 2^34121213129 is an apocalyptic number.

It is an amenable number.

34121213129 is a deficient number, since it is larger than the sum of its proper divisors (1).

34121213129 is an equidigital number, since it uses as much as digits as its factorization.

34121213129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 29.

The spelling of 34121213129 in words is "thirty-four billion, one hundred twenty-one million, two hundred thirteen thousand, one hundred twenty-nine".