12321123 has 8 divisors (see below), whose sum is σ = 17142528. Its totient is φ = 7856904.

The previous prime is 12321121. The next prime is 12321131. The reversal of 12321123 is 32112321.

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

It is not a de Polignac number, because 12321123 - 2¹ = 12321121 is a prime.

It is a super-2 number, since 2×12321123² = 303620143962258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12321121) 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, 89215 + ... + 89352.

It is an arithmetic number, because the mean of its divisors is an integer number (2142816).

Almost surely, 2^12321123 is an apocalyptic number.

12321123 is a deficient number, since it is larger than the sum of its proper divisors (4821405).

12321123 is a wasteful number, since it uses less digits than its factorization.

12321123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178593.

The product of its digits is 72, while the sum is 15.

The square root of 12321123 is about 3510.1457234708. The cubic root of 12321123 is about 230.9670873819.

Adding to 12321123 its reverse (32112321), we get a palindrome (44433444).

The spelling of 12321123 in words is "twelve million, three hundred twenty-one thousand, one hundred twenty-three".