1101128876172 has 72 divisors (see below), whose sum is σ = 3046657206320. Its totient is φ = 333254632320.

The previous prime is 1101128876149. The next prime is 1101128876191. The reversal of 1101128876172 is 2716788211011.

1101128876172 is a `hidden beast` number, since 1 + 1 + 0 + 1 + 1 + 28 + 8 + 7 + 617 + 2 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19257022 + ... + 19314117.

Almost surely, 2^{1101128876172} is an apocalyptic number.

1101128876172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1101128876172 is an abundant number, since it is smaller than the sum of its proper divisors (1945528330148).

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

1101128876172 is a wasteful number, since it uses less digits than its factorization.

1101128876172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38571223 (or 38571218 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 45.

The spelling of 1101128876172 in words is "one trillion, one hundred one billion, one hundred twenty-eight million, eight hundred seventy-six thousand, one hundred seventy-two".