12303445513523 has 8 divisors (see below), whose sum is σ = 12422141664192. Its totient is φ = 12184818079336.

The previous prime is 12303445513453. The next prime is 12303445513529. The reversal of 12303445513523 is 32531554430321.

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 12303445513523 - 2⁸ = 12303445513267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12303445513529) 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, 16819265 + ... + 17535522.

It is an arithmetic number, because the mean of its divisors is an integer number (1552767708024).

Almost surely, 2^{12303445513523} is an apocalyptic number.

12303445513523 is a deficient number, since it is larger than the sum of its proper divisors (118696150669).

12303445513523 is a wasteful number, since it uses less digits than its factorization.

12303445513523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34358241.

The product of its (nonzero) digits is 648000, while the sum is 41.

Adding to 12303445513523 its reverse (32531554430321), we get a palindrome (44834999943844).

The spelling of 12303445513523 in words is "twelve trillion, three hundred three billion, four hundred forty-five million, five hundred thirteen thousand, five hundred twenty-three".