12354323321 has 16 divisors (see below), whose sum is σ = 13064163840. Its totient is φ = 11663870400.

The previous prime is 12354323291. The next prime is 12354323341. The reversal of 12354323321 is 12332345321.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12354323321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12354323341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1769780 + ... + 1776746.

It is an arithmetic number, because the mean of its divisors is an integer number (816510240).

Almost surely, 2^12354323321 is an apocalyptic number.

It is an amenable number.

12354323321 is a deficient number, since it is larger than the sum of its proper divisors (709840519).

12354323321 is a wasteful number, since it uses less digits than its factorization.

12354323321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8344.

The product of its digits is 12960, while the sum is 29.

Adding to 12354323321 its reverse (12332345321), we get a palindrome (24686668642).

The spelling of 12354323321 in words is "twelve billion, three hundred fifty-four million, three hundred twenty-three thousand, three hundred twenty-one".