232131233 has 4 divisors (see below), whose sum is σ = 233413908. Its totient is φ = 230848560.

The previous prime is 232131199. The next prime is 232131239. The reversal of 232131233 is 332131232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58629649 + 173501584 = 7657^2 + 13172^2 .

It is a cyclic number.

It is not a de Polignac number, because 232131233 - 2¹⁶ = 232065697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232131239) 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 3 ways as a sum of consecutive naturals, for example, 641066 + ... + 641427.

It is an arithmetic number, because the mean of its divisors is an integer number (58353477).

Almost surely, 2^232131233 is an apocalyptic number.

It is an amenable number.

232131233 is a deficient number, since it is larger than the sum of its proper divisors (1282675).

232131233 is a wasteful number, since it uses less digits than its factorization.

232131233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282674.

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

The square root of 232131233 is about 15235.8535369700. The cubic root of 232131233 is about 614.5792023082.

Adding to 232131233 its reverse (332131232), we get a palindrome (564262465).

Subtracting 232131233 from its reverse (332131232), we obtain a palindrome (99999999).

The spelling of 232131233 in words is "two hundred thirty-two million, one hundred thirty-one thousand, two hundred thirty-three".