232730431 has 2 divisors, whose sum is σ = 232730432. Its totient is φ = 232730430.

The previous prime is 232730371. The next prime is 232730447. The reversal of 232730431 is 134037232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 232730431 - 2⁹ = 232729919 is a prime.

It is a super-2 number, since 2×232730431² = 108326907026891522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 232730396 and 232730405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232730131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116365215 + 116365216.

It is an arithmetic number, because the mean of its divisors is an integer number (116365216).

Almost surely, 2^232730431 is an apocalyptic number.

232730431 is a deficient number, since it is larger than the sum of its proper divisors (1).

232730431 is an equidigital number, since it uses as much as digits as its factorization.

232730431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 232730431 is about 15255.5049408402. The cubic root of 232730431 is about 615.1075503184.

Adding to 232730431 its reverse (134037232), we get a palindrome (366767663).

The spelling of 232730431 in words is "two hundred thirty-two million, seven hundred thirty thousand, four hundred thirty-one".