129018870601 has 8 divisors (see below), whose sum is σ = 129114512384. Its totient is φ = 128923267680.

The previous prime is 129018870577. The next prime is 129018870623. The reversal of 129018870601 is 106078810921.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129018870601 - 2¹³ = 129018862409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129018870901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10150216 + ... + 10162918.

It is an arithmetic number, because the mean of its divisors is an integer number (16139314048).

Almost surely, 2^129018870601 is an apocalyptic number.

It is an amenable number.

129018870601 is a deficient number, since it is larger than the sum of its proper divisors (95641783).

129018870601 is a wasteful number, since it uses less digits than its factorization.

129018870601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19431.

The product of its (nonzero) digits is 48384, while the sum is 43.

The spelling of 129018870601 in words is "one hundred twenty-nine billion, eighteen million, eight hundred seventy thousand, six hundred one".