12312303202516 has 24 divisors (see below), whose sum is σ = 21691232445960. Its totient is φ = 6114910177152.

The previous prime is 12312303202499. The next prime is 12312303202579. The reversal of 12312303202516 is 61520230321321.

It can be written as a sum of positive squares in 4 ways, for example, as 2520441616 + 12309782760900 = 50204^2 + 3508530^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12261451 + ... + 13227538.

It is an arithmetic number, because the mean of its divisors is an integer number (903801351915).

Almost surely, 2^{12312303202516} is an apocalyptic number.

It is an amenable number.

12312303202516 is a deficient number, since it is larger than the sum of its proper divisors (9378929243444).

12312303202516 is a wasteful number, since it uses less digits than its factorization.

12312303202516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25489803 (or 25489801 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 12312303202516 its reverse (61520230321321), we get a palindrome (73832533523837).

The spelling of 12312303202516 in words is "twelve trillion, three hundred twelve billion, three hundred three million, two hundred two thousand, five hundred sixteen".