128113132 has 12 divisors (see below), whose sum is σ = 256226320. Its totient is φ = 54905616.

The previous prime is 128113127. The next prime is 128113171. The reversal of 128113132 is 231311821.

It is a happy number.

128113132 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2287707 + ... + 2287762.

Almost surely, 2^128113132 is an apocalyptic number.

It is an amenable number.

128113132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

128113132 is a wasteful number, since it uses less digits than its factorization.

128113132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4575480 (or 4575478 counting only the distinct ones).

The product of its digits is 288, while the sum is 22.

The square root of 128113132 is about 11318.7071699907. The cubic root of 128113132 is about 504.1168526821.

Adding to 128113132 its reverse (231311821), we get a palindrome (359424953).

The spelling of 128113132 in words is "one hundred twenty-eight million, one hundred thirteen thousand, one hundred thirty-two".