12513661542012 has 96 divisors (see below), whose sum is σ = 29800964838400. Its totient is φ = 4085763897600.

The previous prime is 12513661541957. The next prime is 12513661542013. The reversal of 12513661542012 is 21024516631521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12513661542013) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 183345789 + ... + 183414027.

Almost surely, 2^{12513661542012} is an apocalyptic number.

12513661542012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12513661542012 is an abundant number, since it is smaller than the sum of its proper divisors (17287303296388).

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

12513661542012 is a wasteful number, since it uses less digits than its factorization.

12513661542012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69347 (or 69345 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 12513661542012 in words is "twelve trillion, five hundred thirteen billion, six hundred sixty-one million, five hundred forty-two thousand, twelve".