123247271 has 16 divisors (see below), whose sum is σ = 150571008. Its totient is φ = 98577600.

The previous prime is 123247261. The next prime is 123247279. The reversal of 123247271 is 172742321.

It is a cyclic number.

It is not a de Polignac number, because 123247271 - 2¹⁰ = 123246247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123247279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2735 + ... + 15936.

It is an arithmetic number, because the mean of its divisors is an integer number (9410688).

Almost surely, 2^123247271 is an apocalyptic number.

123247271 is a deficient number, since it is larger than the sum of its proper divisors (27323737).

123247271 is a wasteful number, since it uses less digits than its factorization.

123247271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18742.

The product of its digits is 4704, while the sum is 29.

The square root of 123247271 is about 11101.6787469283. The cubic root of 123247271 is about 497.6520192319.

Adding to 123247271 its reverse (172742321), we get a palindrome (295989592).

The spelling of 123247271 in words is "one hundred twenty-three million, two hundred forty-seven thousand, two hundred seventy-one".