1232131223 has 4 divisors (see below), whose sum is σ = 1232314800. Its totient is φ = 1231947648.

The previous prime is 1232131211. The next prime is 1232131297. The reversal of 1232131223 is 3221312321.

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 1232131223 - 2⁸ = 1232130967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1232131195 and 1232131204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232137223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81323 + ... + 95276.

It is an arithmetic number, because the mean of its divisors is an integer number (308078700).

Almost surely, 2^1232131223 is an apocalyptic number.

1232131223 is a deficient number, since it is larger than the sum of its proper divisors (183577).

1232131223 is an equidigital number, since it uses as much as digits as its factorization.

1232131223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183576.

The product of its digits is 432, while the sum is 20.

The square root of 1232131223 is about 35101.7267808864. The cubic root of 1232131223 is about 1072.0597419623.

Adding to 1232131223 its reverse (3221312321), we get a palindrome (4453443544).

The spelling of 1232131223 in words is "one billion, two hundred thirty-two million, one hundred thirty-one thousand, two hundred twenty-three".