123730271 has 16 divisors (see below), whose sum is σ = 147993600. Its totient is φ = 101141568.

The previous prime is 123730259. The next prime is 123730279. The reversal of 123730271 is 172037321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123730271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123730271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123730279) 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, 64910 + ... + 66788.

It is an arithmetic number, because the mean of its divisors is an integer number (9249600).

Almost surely, 2^123730271 is an apocalyptic number.

123730271 is a deficient number, since it is larger than the sum of its proper divisors (24263329).

123730271 is a wasteful number, since it uses less digits than its factorization.

123730271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2318.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 123730271 is about 11123.4109426920. The cubic root of 123730271 is about 498.3012631221.

Adding to 123730271 its reverse (172037321), we get a palindrome (295767592).

The spelling of 123730271 in words is "one hundred twenty-three million, seven hundred thirty thousand, two hundred seventy-one".