12310120128 has 56 divisors (see below), whose sum is σ = 33104500720. Its totient is φ = 4036101120.

The previous prime is 12310120093. The next prime is 12310120139. The reversal of 12310120128 is 82102101321.

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, 513823 + ... + 537246.

Almost surely, 2^12310120128 is an apocalyptic number.

It is an amenable number.

12310120128 is an abundant number, since it is smaller than the sum of its proper divisors (20794380592).

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

12310120128 is a wasteful number, since it uses less digits than its factorization.

12310120128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051145 (or 1051135 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 12310120128 its reverse (82102101321), we get a palindrome (94412221449).

The spelling of 12310120128 in words is "twelve billion, three hundred ten million, one hundred twenty thousand, one hundred twenty-eight".