231102271 has 2 divisors, whose sum is σ = 231102272. Its totient is φ = 231102270.

The previous prime is 231102269. The next prime is 231102293. The reversal of 231102271 is 172201132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231102271 - 2¹ = 231102269 is a prime.

It is a super-2 number, since 2×231102271² = 106816519322714882, which contains 22 as substring.

Together with 231102269, 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 (231102211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115551135 + 115551136.

It is an arithmetic number, because the mean of its divisors is an integer number (115551136).

Almost surely, 2^231102271 is an apocalyptic number.

231102271 is a deficient number, since it is larger than the sum of its proper divisors (1).

231102271 is an equidigital number, since it uses as much as digits as its factorization.

231102271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 231102271 is about 15202.0482501537. The cubic root of 231102271 is about 613.6697809135.

The spelling of 231102271 in words is "two hundred thirty-one million, one hundred two thousand, two hundred seventy-one".