129215811304 has 16 divisors (see below), whose sum is σ = 242415252000. Its totient is φ = 64571744112.

The previous prime is 129215811293. The next prime is 129215811313. The reversal of 129215811304 is 403118512921.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4505004 + ... + 4533595.

It is an arithmetic number, because the mean of its divisors is an integer number (15150953250).

Almost surely, 2^129215811304 is an apocalyptic number.

It is an amenable number.

129215811304 is a deficient number, since it is larger than the sum of its proper divisors (113199440696).

129215811304 is a wasteful number, since it uses less digits than its factorization.

129215811304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9040392 (or 9040388 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 37.

The spelling of 129215811304 in words is "one hundred twenty-nine billion, two hundred fifteen million, eight hundred eleven thousand, three hundred four".