12323520315223 has 48 divisors (see below), whose sum is σ = 14635792694880. Its totient is φ = 10300667295744.

The previous prime is 12323520315109. The next prime is 12323520315251. The reversal of 12323520315223 is 32251302532321.

It is a de Polignac number, because none of the positive numbers 2^k-12323520315223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12323520315263) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30633861 + ... + 31033537.

It is an arithmetic number, because the mean of its divisors is an integer number (304912347810).

Almost surely, 2^{12323520315223} is an apocalyptic number.

12323520315223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12323520315223 is a deficient number, since it is larger than the sum of its proper divisors (2312272379657).

12323520315223 is a wasteful number, since it uses less digits than its factorization.

12323520315223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400036 (or 400019 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 34.

Adding to 12323520315223 its reverse (32251302532321), we get a palindrome (44574822847544).

The spelling of 12323520315223 in words is "twelve trillion, three hundred twenty-three billion, five hundred twenty million, three hundred fifteen thousand, two hundred twenty-three".