231344471 has 2 divisors, whose sum is σ = 231344472. Its totient is φ = 231344470.

The previous prime is 231344459. The next prime is 231344479. The reversal of 231344471 is 174443132.

231344471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231344471 is a prime.

It is a super-3 number, since 3×231344471³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231344479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115672235 + 115672236.

It is an arithmetic number, because the mean of its divisors is an integer number (115672236).

Almost surely, 2^231344471 is an apocalyptic number.

231344471 is a deficient number, since it is larger than the sum of its proper divisors (1).

231344471 is an equidigital number, since it uses as much as digits as its factorization.

231344471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 29.

The square root of 231344471 is about 15210.0121959188. The cubic root of 231344471 is about 613.8840856421.

The spelling of 231344471 in words is "two hundred thirty-one million, three hundred forty-four thousand, four hundred seventy-one".