123211233 has 16 divisors (see below), whose sum is σ = 182815360. Its totient is φ = 82014768.

The previous prime is 123211201. The next prime is 123211241. The reversal of 123211233 is 332112321.

It is not a de Polignac number, because 123211233 - 2⁵ = 123211201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123211433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16491 + ... + 22767.

It is an arithmetic number, because the mean of its divisors is an integer number (11425960).

Almost surely, 2^123211233 is an apocalyptic number.

It is an amenable number.

123211233 is a deficient number, since it is larger than the sum of its proper divisors (59604127).

123211233 is an equidigital number, since it uses as much as digits as its factorization.

123211233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7013 (or 7007 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 123211233 is about 11100.0555404016. The cubic root of 123211233 is about 497.6035093497.

Adding to 123211233 its reverse (332112321), we get a palindrome (455323554).

The spelling of 123211233 in words is "one hundred twenty-three million, two hundred eleven thousand, two hundred thirty-three".