232312231 has 4 divisors (see below), whose sum is σ = 232785864. Its totient is φ = 231838600.

The previous prime is 232312189. The next prime is 232312237. The reversal of 232312231 is 132213232.

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 232312231 - 2⁹ = 232311719 is a prime.

It is a super-2 number, since 2×232312231² = 107937945344394722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232312199 and 232312208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232312237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236080 + ... + 237061.

It is an arithmetic number, because the mean of its divisors is an integer number (58196466).

Almost surely, 2^232312231 is an apocalyptic number.

232312231 is a deficient number, since it is larger than the sum of its proper divisors (473633).

232312231 is an equidigital number, since it uses as much as digits as its factorization.

232312231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473632.

The product of its digits is 432, while the sum is 19.

The square root of 232312231 is about 15241.7922502572. The cubic root of 232312231 is about 614.7388946024.

Adding to 232312231 its reverse (132213232), we get a palindrome (364525463).

The spelling of 232312231 in words is "two hundred thirty-two million, three hundred twelve thousand, two hundred thirty-one".