12513263756420 has 48 divisors (see below), whose sum is σ = 30032724586368. Its totient is φ = 4290134492160.

The previous prime is 12513263756419. The next prime is 12513263756423. The reversal of 12513263756420 is 2465736231521.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12513263756423) 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, 3467540 + ... + 6086900.

It is an arithmetic number, because the mean of its divisors is an integer number (625681762216).

Almost surely, 2^{12513263756420} is an apocalyptic number.

12513263756420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12513263756420 is an abundant number, since it is smaller than the sum of its proper divisors (17519460829948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12513263756420 is a wasteful number, since it uses less digits than its factorization.

12513263756420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2653500 (or 2653498 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 47.

Adding to 12513263756420 its reverse (2465736231521), we get a palindrome (14978999987941).

The spelling of 12513263756420 in words is "twelve trillion, five hundred thirteen billion, two hundred sixty-three million, seven hundred fifty-six thousand, four hundred twenty".