123340271 has 2 divisors, whose sum is σ = 123340272. Its totient is φ = 123340270.

The previous prime is 123340201. The next prime is 123340313. The reversal of 123340271 is 172043321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123340271 - 2¹⁴ = 123323887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123340201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61670135 + 61670136.

It is an arithmetic number, because the mean of its divisors is an integer number (61670136).

Almost surely, 2^123340271 is an apocalyptic number.

123340271 is a deficient number, since it is larger than the sum of its proper divisors (1).

123340271 is an equidigital number, since it uses as much as digits as its factorization.

123340271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 123340271 is about 11105.8665127940. The cubic root of 123340271 is about 497.7771606142. Note that the first 3 decimals are identical.

Adding to 123340271 its reverse (172043321), we get a palindrome (295383592).

The spelling of 123340271 in words is "one hundred twenty-three million, three hundred forty thousand, two hundred seventy-one".