12234324321 has 20 divisors (see below), whose sum is σ = 18330238212. Its totient is φ = 8131995648.

The previous prime is 12234324307. The next prime is 12234324407. The reversal of 12234324321 is 12342343221.

12234324321 is a `hidden beast` number, since 1 + 223 + 4 + 3 + 2 + 432 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6278343696 + 5955980625 = 79236^2 + 77175^2 .

It is not a de Polignac number, because 12234324321 - 2¹⁷ = 12234193249 is a prime.

It is a super-2 number, since 2×12234324321² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12234324521) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 196800 + ... + 251393.

Almost surely, 2^12234324321 is an apocalyptic number.

It is an amenable number.

12234324321 is a deficient number, since it is larger than the sum of its proper divisors (6095913891).

12234324321 is an equidigital number, since it uses as much as digits as its factorization.

12234324321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448542 (or 448533 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

Adding to 12234324321 its reverse (12342343221), we get a palindrome (24576667542).

The spelling of 12234324321 in words is "twelve billion, two hundred thirty-four million, three hundred twenty-four thousand, three hundred twenty-one".