123231233 has 2 divisors, whose sum is σ = 123231234. Its totient is φ = 123231232.

The previous prime is 123231223. The next prime is 123231239. The reversal of 123231233 is 332132321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115519504 + 7711729 = 10748^2 + 2777^2 .

It is a cyclic number.

It is not a de Polignac number, because 123231233 - 2¹⁰ = 123230209 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (123231239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61615616 + 61615617.

It is an arithmetic number, because the mean of its divisors is an integer number (61615617).

Almost surely, 2^123231233 is an apocalyptic number.

It is an amenable number.

123231233 is a deficient number, since it is larger than the sum of its proper divisors (1).

123231233 is an equidigital number, since it uses as much as digits as its factorization.

123231233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 20.

The square root of 123231233 is about 11100.9564002387. The cubic root of 123231233 is about 497.6304320350.

Adding to 123231233 its reverse (332132321), we get a palindrome (455363554).

The spelling of 123231233 in words is "one hundred twenty-three million, two hundred thirty-one thousand, two hundred thirty-three".