12300031023221 has 4 divisors (see below), whose sum is σ = 12300362071200. Its totient is φ = 12299699975244.

The previous prime is 12300031023199. The next prime is 12300031023281. The reversal of 12300031023221 is 12232013000321.

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 a de Polignac number, because none of the positive numbers 2^k-12300031023221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12300031023193 and 12300031023202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12300031023281) 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, 165468251 + ... + 165542568.

It is an arithmetic number, because the mean of its divisors is an integer number (3075090517800).

Almost surely, 2^{12300031023221} is an apocalyptic number.

It is an amenable number.

12300031023221 is a deficient number, since it is larger than the sum of its proper divisors (331047979).

12300031023221 is an equidigital number, since it uses as much as digits as its factorization.

12300031023221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331047978.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12300031023221 its reverse (12232013000321), we get a palindrome (24532044023542).

The spelling of 12300031023221 in words is "twelve trillion, three hundred billion, thirty-one million, twenty-three thousand, two hundred twenty-one".