2128111106382 has 48 divisors (see below), whose sum is σ = 4787758440192. Its totient is φ = 708468881400.

The previous prime is 2128111106353. The next prime is 2128111106399. The reversal of 2128111106382 is 2836011118212.

It is a happy number.

2128111106382 is a `hidden beast` number, since 2 + 1 + 2 + 8 + 1 + 1 + 1 + 10 + 638 + 2 = 666.

It is a super-2 number, since 2×2128111106382² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2399494 + ... + 3164457.

It is an arithmetic number, because the mean of its divisors is an integer number (99744967504).

Almost surely, 2^{2128111106382} is an apocalyptic number.

2128111106382 is an abundant number, since it is smaller than the sum of its proper divisors (2659647333810).

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

2128111106382 is an equidigital number, since it uses as much as digits as its factorization.

2128111106382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5564755 (or 5564743 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The spelling of 2128111106382 in words is "two trillion, one hundred twenty-eight billion, one hundred eleven million, one hundred six thousand, three hundred eighty-two".