12123133233 has 32 divisors (see below), whose sum is σ = 17129840640. Its totient is φ = 7613282880.

The previous prime is 12123133223. The next prime is 12123133247. The reversal of 12123133233 is 33233132121.

It is not a de Polignac number, because 12123133233 - 2¹⁴ = 12123116849 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12123133223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5501910 + ... + 5504112.

It is an arithmetic number, because the mean of its divisors is an integer number (535307520).

Almost surely, 2^12123133233 is an apocalyptic number.

It is an amenable number.

12123133233 is a deficient number, since it is larger than the sum of its proper divisors (5006707407).

12123133233 is a wasteful number, since it uses less digits than its factorization.

12123133233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3749.

The product of its digits is 1944, while the sum is 24.

Adding to 12123133233 its reverse (33233132121), we get a palindrome (45356265354).

The spelling of 12123133233 in words is "twelve billion, one hundred twenty-three million, one hundred thirty-three thousand, two hundred thirty-three".