123423171208 has 16 divisors (see below), whose sum is σ = 237672999180. Its totient is φ = 60043704768.

The previous prime is 123423171203. The next prime is 123423171227. The reversal of 123423171208 is 802171324321.

It can be written as a sum of positive squares in 2 ways, for example, as 118722971844 + 4700199364 = 344562^2 + 68558^2 .

It is not an unprimeable number, because it can be changed into a prime (123423171203) 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, 208484791 + ... + 208485382.

Almost surely, 2^123423171208 is an apocalyptic number.

It is an amenable number.

123423171208 is a deficient number, since it is larger than the sum of its proper divisors (114249827972).

123423171208 is a wasteful number, since it uses less digits than its factorization.

123423171208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416970216 (or 416970212 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

Adding to 123423171208 its reverse (802171324321), we get a palindrome (925594495529).

The spelling of 123423171208 in words is "one hundred twenty-three billion, four hundred twenty-three million, one hundred seventy-one thousand, two hundred eight".