123171338 has 16 divisors (see below), whose sum is σ = 196305120. Its totient is φ = 57797136.

The previous prime is 123171337. The next prime is 123171379. The reversal of 123171338 is 833171321.

It is a self number, because there is not a number n which added to its sum of digits gives 123171338.

It is not an unprimeable number, because it can be changed into a prime (123171337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11081 + ... + 19212.

It is an arithmetic number, because the mean of its divisors is an integer number (12269070).

Almost surely, 2^123171338 is an apocalyptic number.

123171338 is a deficient number, since it is larger than the sum of its proper divisors (73133782).

123171338 is a wasteful number, since it uses less digits than its factorization.

123171338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30421.

The product of its digits is 3024, while the sum is 29.

The square root of 123171338 is about 11098.2583318285. The cubic root of 123171338 is about 497.5497966198.

The spelling of 123171338 in words is "one hundred twenty-three million, one hundred seventy-one thousand, three hundred thirty-eight".