2128111106383 has 4 divisors (see below), whose sum is σ = 2128115779920. Its totient is φ = 2128106432848.

The previous prime is 2128111106353. The next prime is 2128111106399. The reversal of 2128111106383 is 3836011118212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2128111106383 - 2⁹ = 2128111105871 is a prime.

It is a super-2 number, since 2×2128111106383² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128111106353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1569835 + ... + 2592412.

It is an arithmetic number, because the mean of its divisors is an integer number (532028944980).

Almost surely, 2^{2128111106383} is an apocalyptic number.

2128111106383 is a deficient number, since it is larger than the sum of its proper divisors (4673537).

2128111106383 is an equidigital number, since it uses as much as digits as its factorization.

2128111106383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4673536.

The product of its (nonzero) digits is 13824, while the sum is 37.

The spelling of 2128111106383 in words is "two trillion, one hundred twenty-eight billion, one hundred eleven million, one hundred six thousand, three hundred eighty-three".