128315000012 has 48 divisors (see below), whose sum is σ = 237173873664. Its totient is φ = 60623640000.

The previous prime is 128315000003. The next prime is 128315000057. The reversal of 128315000012 is 210000513821.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2488937 + ... + 2539967.

It is an arithmetic number, because the mean of its divisors is an integer number (4941122368).

Almost surely, 2^128315000012 is an apocalyptic number.

It is an amenable number.

128315000012 is a deficient number, since it is larger than the sum of its proper divisors (108858873652).

128315000012 is a wasteful number, since it uses less digits than its factorization.

128315000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51390 (or 51388 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 128315000012 its reverse (210000513821), we get a palindrome (338315513833).

The spelling of 128315000012 in words is "one hundred twenty-eight billion, three hundred fifteen million, twelve", and thus it is an aban number.