128202254312 has 32 divisors (see below), whose sum is σ = 264552540480. Its totient is φ = 57758050560.

The previous prime is 128202254293. The next prime is 128202254317. The reversal of 128202254312 is 213452202821.

128202254312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (128202254317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6436268 + ... + 6456155.

It is an arithmetic number, because the mean of its divisors is an integer number (8267266890).

Almost surely, 2^128202254312 is an apocalyptic number.

It is an amenable number.

128202254312 is an abundant number, since it is smaller than the sum of its proper divisors (136350286168).

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

128202254312 is a wasteful number, since it uses less digits than its factorization.

128202254312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12892553 (or 12892549 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The spelling of 128202254312 in words is "one hundred twenty-eight billion, two hundred two million, two hundred fifty-four thousand, three hundred twelve".