123271 has 4 divisors (see below), whose sum is σ = 124344. Its totient is φ = 122200.

The previous prime is 123269. The next prime is 123289. The reversal of 123271 is 172321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 123271 - 2¹ = 123269 is a prime.

It is a Duffinian number.

123271 is a lucky number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340 + ... + 601.

It is an arithmetic number, because the mean of its divisors is an integer number (31086).

2¹²³²⁷¹ is an apocalyptic number.

123271 is a deficient number, since it is larger than the sum of its proper divisors (1073).

123271 is an equidigital number, since it uses as much as digits as its factorization.

123271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072.

The product of its digits is 84, while the sum is 16.

The square root of 123271 is about 351.0997009398. The cubic root of 123271 is about 49.7683955103.

Adding to 123271 its reverse (172321), we get a palindrome (295592).

It can be divided in two parts, 123 and 271, that multiplied together give a palindrome (33333).

The spelling of 123271 in words is "one hundred twenty-three thousand, two hundred seventy-one", and thus it is an iban number.