12303212301021 has 4 divisors (see below), whose sum is σ = 16404283068032. Its totient is φ = 8202141534012.

The previous prime is 12303212301001. The next prime is 12303212301071. The reversal of 12303212301021 is 12010321230321.

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 not a de Polignac number, because 12303212301021 - 2²³ = 12303203912413 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303212301001) 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, 2050535383501 + ... + 2050535383506.

It is an arithmetic number, because the mean of its divisors is an integer number (4101070767008).

Almost surely, 2^{12303212301021} is an apocalyptic number.

It is an amenable number.

12303212301021 is a deficient number, since it is larger than the sum of its proper divisors (4101070767011).

12303212301021 is an equidigital number, since it uses as much as digits as its factorization.

12303212301021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4101070767010.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12303212301021 its reverse (12010321230321), we get a palindrome (24313533531342).

The spelling of 12303212301021 in words is "twelve trillion, three hundred three billion, two hundred twelve million, three hundred one thousand, twenty-one".