231303271 has 2 divisors, whose sum is σ = 231303272. Its totient is φ = 231303270.

The previous prime is 231303269. The next prime is 231303301. The reversal of 231303271 is 172303132.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231303271 - 2¹ = 231303269 is a prime.

Together with 231303269, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231303221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115651635 + 115651636.

It is an arithmetic number, because the mean of its divisors is an integer number (115651636).

Almost surely, 2^231303271 is an apocalyptic number.

231303271 is a deficient number, since it is larger than the sum of its proper divisors (1).

231303271 is an equidigital number, since it uses as much as digits as its factorization.

231303271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 231303271 is about 15208.6577645761. The cubic root of 231303271 is about 613.8476413940.

The spelling of 231303271 in words is "two hundred thirty-one million, three hundred three thousand, two hundred seventy-one".