2133042123 has 4 divisors (see below), whose sum is σ = 2844056168. Its totient is φ = 1422028080.

The previous prime is 2133042091. The next prime is 2133042151. The reversal of 2133042123 is 3212403312.

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

It is not a de Polignac number, because 2133042123 - 2⁵ = 2133042091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2133042123.

It is not an unprimeable number, because it can be changed into a prime (2133042323) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 355507018 + ... + 355507023.

It is an arithmetic number, because the mean of its divisors is an integer number (711014042).

Almost surely, 2^2133042123 is an apocalyptic number.

2133042123 is a deficient number, since it is larger than the sum of its proper divisors (711014045).

2133042123 is an equidigital number, since it uses as much as digits as its factorization.

2133042123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711014044.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2133042123 is about 46184.8689832503. The cubic root of 2133042123 is about 1287.2606017076.

Adding to 2133042123 its reverse (3212403312), we get a palindrome (5345445435).

The spelling of 2133042123 in words is "two billion, one hundred thirty-three million, forty-two thousand, one hundred twenty-three".