129391179223 has 8 divisors (see below), whose sum is σ = 130661751168. Its totient is φ = 128120883384.

The previous prime is 129391179221. The next prime is 129391179233. The reversal of 129391179223 is 322971193921.

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 129391179223 - 2¹ = 129391179221 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 (129391179221) 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, 945636 + ... + 1073782.

It is an arithmetic number, because the mean of its divisors is an integer number (16332718896).

Almost surely, 2^129391179223 is an apocalyptic number.

129391179223 is a deficient number, since it is larger than the sum of its proper divisors (1270571945).

129391179223 is a wasteful number, since it uses less digits than its factorization.

129391179223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138053.

The product of its digits is 367416, while the sum is 49.

The spelling of 129391179223 in words is "one hundred twenty-nine billion, three hundred ninety-one million, one hundred seventy-nine thousand, two hundred twenty-three".