231123271 has 2 divisors, whose sum is σ = 231123272. Its totient is φ = 231123270.

The previous prime is 231123257. The next prime is 231123337. The reversal of 231123271 is 172321132.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231123271 - 2¹⁷ = 230992199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231123371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115561635 + 115561636.

It is an arithmetic number, because the mean of its divisors is an integer number (115561636).

Almost surely, 2^231123271 is an apocalyptic number.

231123271 is a deficient number, since it is larger than the sum of its proper divisors (1).

231123271 is an equidigital number, since it uses as much as digits as its factorization.

231123271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 22.

The square root of 231123271 is about 15202.7389308637. The cubic root of 231123271 is about 613.6883681750.

The spelling of 231123271 in words is "two hundred thirty-one million, one hundred twenty-three thousand, two hundred seventy-one".