12303211021 has 8 divisors (see below), whose sum is σ = 12546629784. Its totient is φ = 12060210240.

The previous prime is 12303210977. The next prime is 12303211061. The reversal of 12303211021 is 12011230321.

It can be written as a sum of positive squares in 4 ways, for example, as 52041796 + 12251169225 = 7214^2 + 110685^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12303211021 - 2⁹ = 12303210509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12303210986 and 12303211004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303211061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44710 + ... + 163111.

It is an arithmetic number, because the mean of its divisors is an integer number (1568328723).

Almost surely, 2^12303211021 is an apocalyptic number.

It is an amenable number.

12303211021 is a deficient number, since it is larger than the sum of its proper divisors (243418763).

12303211021 is a wasteful number, since it uses less digits than its factorization.

12303211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208991.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12303211021 its reverse (12011230321), we get a palindrome (24314441342).

The spelling of 12303211021 in words is "twelve billion, three hundred three million, two hundred eleven thousand, twenty-one".