306128520012 has 48 divisors (see below), whose sum is σ = 816392908800. Its totient is φ = 87459914112.

The previous prime is 306128519981. The next prime is 306128520031. The reversal of 306128520012 is 210025821603.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1379989 + ... + 1586387.

It is an arithmetic number, because the mean of its divisors is an integer number (17008185600).

Almost surely, 2^306128520012 is an apocalyptic number.

It is an amenable number.

306128520012 is an abundant number, since it is smaller than the sum of its proper divisors (510264388788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

306128520012 is a wasteful number, since it uses less digits than its factorization.

306128520012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224070 (or 224068 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The spelling of 306128520012 in words is "three hundred six billion, one hundred twenty-eight million, five hundred twenty thousand, twelve".