300128313509 has 16 divisors (see below), whose sum is σ = 321109401600. Its totient is φ = 279528286464.

The previous prime is 300128313493. The next prime is 300128313521. The reversal of 300128313509 is 905313821003.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 300128313509 - 2⁴ = 300128313493 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 (300128313409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 661172 + ... + 1018530.

It is an arithmetic number, because the mean of its divisors is an integer number (20069337600).

Almost surely, 2^300128313509 is an apocalyptic number.

It is an amenable number.

300128313509 is a deficient number, since it is larger than the sum of its proper divisors (20981088091).

300128313509 is a wasteful number, since it uses less digits than its factorization.

300128313509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357892.

The product of its (nonzero) digits is 19440, while the sum is 35.

The spelling of 300128313509 in words is "three hundred billion, one hundred twenty-eight million, three hundred thirteen thousand, five hundred nine".