128128313306 has 16 divisors (see below), whose sum is σ = 219674047680. Its totient is φ = 54905756640.

The previous prime is 128128313281. The next prime is 128128313311. The reversal of 128128313306 is 603313821821.

It is a self number, because there is not a number n which added to its sum of digits gives 128128313306.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405596 + ... + 648663.

It is an arithmetic number, because the mean of its divisors is an integer number (13729627980).

Almost surely, 2^128128313306 is an apocalyptic number.

128128313306 is a deficient number, since it is larger than the sum of its proper divisors (91545734374).

128128313306 is a wasteful number, since it uses less digits than its factorization.

128128313306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062949.

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 128128313306 in words is "one hundred twenty-eight billion, one hundred twenty-eight million, three hundred thirteen thousand, three hundred six".