12513263756356 has 48 divisors (see below), whose sum is σ = 24316528235328. Its totient is φ = 5586836988800.

The previous prime is 12513263756351. The next prime is 12513263756359. The reversal of 12513263756356 is 65365736231521.

It is a super-2 number, since 2×12513263756356² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12513263756297 and 12513263756306.

It is not an unprimeable number, because it can be changed into a prime (12513263756351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9271135 + ... + 10534726.

It is an arithmetic number, because the mean of its divisors is an integer number (506594338236).

Almost surely, 2^{12513263756356} is an apocalyptic number.

It is an amenable number.

12513263756356 is a deficient number, since it is larger than the sum of its proper divisors (11803264478972).

12513263756356 is a wasteful number, since it uses less digits than its factorization.

12513263756356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19806132 (or 19806130 counting only the distinct ones).

The product of its digits is 20412000, while the sum is 55.

Adding to 12513263756356 its reverse (65365736231521), we get a palindrome (77878999987877).

The spelling of 12513263756356 in words is "twelve trillion, five hundred thirteen billion, two hundred sixty-three million, seven hundred fifty-six thousand, three hundred fifty-six".