231130343 has 2 divisors, whose sum is σ = 231130344. Its totient is φ = 231130342.

The previous prime is 231130331. The next prime is 231130397. The reversal of 231130343 is 343031132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231130343 - 2⁶ = 231130279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231130643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115565171 + 115565172.

It is an arithmetic number, because the mean of its divisors is an integer number (115565172).

Almost surely, 2^231130343 is an apocalyptic number.

231130343 is a deficient number, since it is larger than the sum of its proper divisors (1).

231130343 is an equidigital number, since it uses as much as digits as its factorization.

231130343 is an evil number, because the sum of its binary digits is even.

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

The square root of 231130343 is about 15202.9715187525. The cubic root of 231130343 is about 613.6946274032.

Adding to 231130343 its reverse (343031132), we get a palindrome (574161475).

The spelling of 231130343 in words is "two hundred thirty-one million, one hundred thirty thousand, three hundred forty-three".