12331342321 has 4 divisors (see below), whose sum is σ = 12331755072. Its totient is φ = 12330929572.

The previous prime is 12331342319. The next prime is 12331342349. The reversal of 12331342321 is 12324313321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12331342321 - 2¹ = 12331342319 is a prime.

It is a super-3 number, since 3×12331342321³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12331342421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157741 + ... + 222586.

It is an arithmetic number, because the mean of its divisors is an integer number (3082938768).

Almost surely, 2^12331342321 is an apocalyptic number.

It is an amenable number.

12331342321 is a deficient number, since it is larger than the sum of its proper divisors (412751).

12331342321 is an equidigital number, since it uses as much as digits as its factorization.

12331342321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412750.

The product of its digits is 2592, while the sum is 25.

Adding to 12331342321 its reverse (12324313321), we get a palindrome (24655655642).

The spelling of 12331342321 in words is "twelve billion, three hundred thirty-one million, three hundred forty-two thousand, three hundred twenty-one".