109128871080 has 128 divisors (see below), whose sum is σ = 376306560000. Its totient is φ = 28097540352.

The previous prime is 109128871073. The next prime is 109128871087. The reversal of 109128871080 is 80178821901.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (109128871073) and next prime (109128871087).

It is a super-2 number, since 2×109128871080² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (109128871087) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1710840 + ... + 1773479.

It is an arithmetic number, because the mean of its divisors is an integer number (2939895000).

Almost surely, 2^109128871080 is an apocalyptic number.

109128871080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109128871080 is an abundant number, since it is smaller than the sum of its proper divisors (267177688920).

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

109128871080 is a wasteful number, since it uses less digits than its factorization.

109128871080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3484368 (or 3484358 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 45.

The spelling of 109128871080 in words is "one hundred nine billion, one hundred twenty-eight million, eight hundred seventy-one thousand, eighty".