1121057176820 has 24 divisors (see below), whose sum is σ = 2690537224704. Its totient is φ = 384362460576.

The previous prime is 1121057176817. The next prime is 1121057176849. The reversal of 1121057176820 is 286717501211.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4003775492 + ... + 4003775771.

It is an arithmetic number, because the mean of its divisors is an integer number (112105717696).

Almost surely, 2^{1121057176820} is an apocalyptic number.

1121057176820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121057176820 is an abundant number, since it is smaller than the sum of its proper divisors (1569480047884).

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

1121057176820 is a wasteful number, since it uses less digits than its factorization.

1121057176820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8007551279 (or 8007551277 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 41.

The spelling of 1121057176820 in words is "one trillion, one hundred twenty-one billion, fifty-seven million, one hundred seventy-six thousand, eight hundred twenty".