231261271 has 8 divisors (see below), whose sum is σ = 242085888. Its totient is φ = 220647000.

The previous prime is 231261269. The next prime is 231261307. The reversal of 231261271 is 172162132.

It is a happy number.

231261271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231261271 - 2¹ = 231261269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231261571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50335 + ... + 54736.

It is an arithmetic number, because the mean of its divisors is an integer number (30260736).

Almost surely, 2^231261271 is an apocalyptic number.

231261271 is a deficient number, since it is larger than the sum of its proper divisors (10824617).

231261271 is a wasteful number, since it uses less digits than its factorization.

231261271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105173.

The product of its digits is 1008, while the sum is 25.

The square root of 231261271 is about 15207.2769094273. The cubic root of 231261271 is about 613.8104850358.

The spelling of 231261271 in words is "two hundred thirty-one million, two hundred sixty-one thousand, two hundred seventy-one".