2133123323 has 4 divisors (see below), whose sum is σ = 2158823688. Its totient is φ = 2107422960.

The previous prime is 2133123271. The next prime is 2133123337. The reversal of 2133123323 is 3233213312.

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 2133123323 - 2⁶ = 2133123259 is a prime.

It is a super-3 number, since 3×2133123323³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2133123373) 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, 12850058 + ... + 12850223.

It is an arithmetic number, because the mean of its divisors is an integer number (539705922).

Almost surely, 2^2133123323 is an apocalyptic number.

2133123323 is a deficient number, since it is larger than the sum of its proper divisors (25700365).

2133123323 is an equidigital number, since it uses as much as digits as its factorization.

2133123323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25700364.

The product of its digits is 1944, while the sum is 23.

The square root of 2133123323 is about 46185.7480506703. The cubic root of 2133123323 is about 1287.2769358489.

Adding to 2133123323 its reverse (3233213312), we get a palindrome (5366336635).

The spelling of 2133123323 in words is "two billion, one hundred thirty-three million, one hundred twenty-three thousand, three hundred twenty-three".