12321421307 has 8 divisors (see below), whose sum is σ = 13279780080. Its totient is φ = 11364570720.

The previous prime is 12321421261. The next prime is 12321421309. The reversal of 12321421307 is 70312412321.

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

It is a cyclic number.

It is not a de Polignac number, because 12321421307 - 2²⁶ = 12254312443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12321421309) 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, 360044 + ... + 392777.

It is an arithmetic number, because the mean of its divisors is an integer number (1659972510).

Almost surely, 2^12321421307 is an apocalyptic number.

12321421307 is a deficient number, since it is larger than the sum of its proper divisors (958358773).

12321421307 is a wasteful number, since it uses less digits than its factorization.

12321421307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754093.

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 12321421307 its reverse (70312412321), we get a palindrome (82633833628).

The spelling of 12321421307 in words is "twelve billion, three hundred twenty-one million, four hundred twenty-one thousand, three hundred seven".