129609963341 has 4 divisors (see below), whose sum is σ = 129613837500. Its totient is φ = 129606089184.

The previous prime is 129609963293. The next prime is 129609963359. The reversal of 129609963341 is 143369906921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 143369906921 = 196717 ⋅728813.

It can be written as a sum of positive squares in 2 ways, for example, as 88571712100 + 41038251241 = 297610^2 + 202579^2 .

It is a cyclic number.

It is not a de Polignac number, because 129609963341 - 2²² = 129605769037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129609969341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1886456 + ... + 1953953.

It is an arithmetic number, because the mean of its divisors is an integer number (32403459375).

Almost surely, 2^129609963341 is an apocalyptic number.

It is an amenable number.

129609963341 is a deficient number, since it is larger than the sum of its proper divisors (3874159).

129609963341 is an equidigital number, since it uses as much as digits as its factorization.

129609963341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3874158.

The product of its (nonzero) digits is 1889568, while the sum is 53.

The spelling of 129609963341 in words is "one hundred twenty-nine billion, six hundred nine million, nine hundred sixty-three thousand, three hundred forty-one".