129912074811 has 12 divisors (see below), whose sum is σ = 187656570400. Its totient is φ = 86605374960.

The previous prime is 129912074783. The next prime is 129912074813. The reversal of 129912074811 is 118470219921.

It is not a de Polignac number, because 129912074811 - 2¹⁰ = 129912073787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129912074813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111006 + ... + 521676.

Almost surely, 2^129912074811 is an apocalyptic number.

129912074811 is a deficient number, since it is larger than the sum of its proper divisors (57744495589).

129912074811 is a wasteful number, since it uses less digits than its factorization.

129912074811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445826 (or 445823 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

It can be divided in two parts, 12991 and 2074811, that added together give a palindrome (2087802).

The spelling of 129912074811 in words is "one hundred twenty-nine billion, nine hundred twelve million, seventy-four thousand, eight hundred eleven".