12303300443503 has 4 divisors (see below), whose sum is σ = 12303316306440. Its totient is φ = 12303284580568.

The previous prime is 12303300443453. The next prime is 12303300443519. The reversal of 12303300443503 is 30534400330321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12303300443503 is a prime.

It is a super-2 number, since 2×12303300443503² (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 (12303300443563) 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, 6704833 + ... + 8340346.

It is an arithmetic number, because the mean of its divisors is an integer number (3075829076610).

Almost surely, 2^{12303300443503} is an apocalyptic number.

12303300443503 is a deficient number, since it is larger than the sum of its proper divisors (15862937).

12303300443503 is an equidigital number, since it uses as much as digits as its factorization.

12303300443503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15862936.

The product of its (nonzero) digits is 38880, while the sum is 31.

Adding to 12303300443503 its reverse (30534400330321), we get a palindrome (42837700773824).

The spelling of 12303300443503 in words is "twelve trillion, three hundred three billion, three hundred million, four hundred forty-three thousand, five hundred three".