123323121 has 32 divisors (see below), whose sum is σ = 189181440. Its totient is φ = 79344000.

The previous prime is 123323119. The next prime is 123323147. The reversal of 123323121 is 121323321.

It is not a de Polignac number, because 123323121 - 2¹ = 123323119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123323094 and 123323103.

It is not an unprimeable number, because it can be changed into a prime (123323111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111256 + ... + 112358.

It is an arithmetic number, because the mean of its divisors is an integer number (5911920).

Almost surely, 2^123323121 is an apocalyptic number.

It is an amenable number.

123323121 is a deficient number, since it is larger than the sum of its proper divisors (65858319).

123323121 is a wasteful number, since it uses less digits than its factorization.

123323121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254 (or 1248 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 123323121 is about 11105.0943715036. The cubic root of 123323121 is about 497.7540881986.

Adding to 123323121 its reverse (121323321), we get a palindrome (244646442).

The spelling of 123323121 in words is "one hundred twenty-three million, three hundred twenty-three thousand, one hundred twenty-one".