12303321021421 has 4 divisors (see below), whose sum is σ = 12304734068032. Its totient is φ = 12301907974812.

The previous prime is 12303321021403. The next prime is 12303321021437. The reversal of 12303321021421 is 12412012330321.

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 12303321021421 - 2⁴¹ = 10104297765869 is a prime.

It is a super-2 number, since 2×12303321021421² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303321021461) 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, 706510245 + ... + 706527658.

It is an arithmetic number, because the mean of its divisors is an integer number (3076183517008).

Almost surely, 2^{12303321021421} is an apocalyptic number.

It is an amenable number.

12303321021421 is a deficient number, since it is larger than the sum of its proper divisors (1413046611).

12303321021421 is an equidigital number, since it uses as much as digits as its factorization.

12303321021421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413046610.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 12303321021421 its reverse (12412012330321), we get a palindrome (24715333351742).

The spelling of 12303321021421 in words is "twelve trillion, three hundred three billion, three hundred twenty-one million, twenty-one thousand, four hundred twenty-one".