123161223 has 8 divisors (see below), whose sum is σ = 164335600. Its totient is φ = 82047168.

The previous prime is 123161189. The next prime is 123161239. The reversal of 123161223 is 322161321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123161223 - 2¹³ = 123153031 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 123161223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123161273) 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, 10078 + ... + 18651.

It is an arithmetic number, because the mean of its divisors is an integer number (20541950).

Almost surely, 2^123161223 is an apocalyptic number.

123161223 is a deficient number, since it is larger than the sum of its proper divisors (41174377).

123161223 is a wasteful number, since it uses less digits than its factorization.

123161223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30161.

The product of its digits is 432, while the sum is 21.

The square root of 123161223 is about 11097.8026203389. The cubic root of 123161223 is about 497.5361764220.

The spelling of 123161223 in words is "one hundred twenty-three million, one hundred sixty-one thousand, two hundred twenty-three".