12302020321 has 4 divisors (see below), whose sum is σ = 12510529200. Its totient is φ = 12093511444.

The previous prime is 12302020273. The next prime is 12302020337.

12302020321 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 a cyclic number.

It is not a de Polignac number, because 12302020321 - 2¹⁵ = 12301987553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12302020295 and 12302020304.

It is not an unprimeable number, because it can be changed into a prime (12302020351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104254351 + ... + 104254468.

It is an arithmetic number, because the mean of its divisors is an integer number (3127632300).

Almost surely, 2^12302020321 is an apocalyptic number.

It is an amenable number.

12302020321 is a deficient number, since it is larger than the sum of its proper divisors (208508879).

12302020321 is an equidigital number, since it uses as much as digits as its factorization.

12302020321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208508878.

The product of its (nonzero) digits is 144, while the sum is 16.

It can be divided in two parts, 123020 and 20321, that added together give a palindrome (143341).

The spelling of 12302020321 in words is "twelve billion, three hundred two million, twenty thousand, three hundred twenty-one".