103128880 has 20 divisors (see below), whose sum is σ = 239774832. Its totient is φ = 41251520.

The previous prime is 103128877. The next prime is 103128929. The reversal of 103128880 is 88821301.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644476 + ... + 644635.

Almost surely, 2^103128880 is an apocalyptic number.

103128880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103128880 is an abundant number, since it is smaller than the sum of its proper divisors (136645952).

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

103128880 is a wasteful number, since it uses less digits than its factorization.

103128880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289124 (or 1289118 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 103128880 is about 10155.2390419921. The cubic root of 103128880 is about 468.9502449934.

The spelling of 103128880 in words is "one hundred three million, one hundred twenty-eight thousand, eight hundred eighty".