12303630321 has 4 divisors (see below), whose sum is σ = 16404840432. Its totient is φ = 8202420212.

The previous prime is 12303630319. The next prime is 12303630323.

It is a happy number.

12303630321 is nontrivially palindromic in base 10.

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 an interprime number because it is at equal distance from previous prime (12303630319) and next prime (12303630323).

It is a cyclic number.

It is not a de Polignac number, because 12303630321 - 2¹ = 12303630319 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 12303630291 and 12303630300.

It is not an unprimeable number, because it can be changed into a prime (12303630323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2050605051 + ... + 2050605056.

It is an arithmetic number, because the mean of its divisors is an integer number (4101210108).

Almost surely, 2^12303630321 is an apocalyptic number.

It is an amenable number.

12303630321 is a deficient number, since it is larger than the sum of its proper divisors (4101210111).

12303630321 is an equidigital number, since it uses as much as digits as its factorization.

12303630321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4101210110.

The product of its (nonzero) digits is 1944, while the sum is 24.

The spelling of 12303630321 in words is "twelve billion, three hundred three million, six hundred thirty thousand, three hundred twenty-one".