12545120013 has 8 divisors (see below), whose sum is σ = 16730212800. Its totient is φ = 8361720288.

The previous prime is 12545119969. The next prime is 12545120039. The reversal of 12545120013 is 31002154521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12545120013 - 2²⁸ = 12276684557 is a prime.

It is a super-2 number, since 2×12545120013² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12545120513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405873 + ... + 435686.

It is an arithmetic number, because the mean of its divisors is an integer number (2091276600).

Almost surely, 2^12545120013 is an apocalyptic number.

It is an amenable number.

12545120013 is a deficient number, since it is larger than the sum of its proper divisors (4185092787).

12545120013 is an equidigital number, since it uses as much as digits as its factorization.

12545120013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846531.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 12545120013 its reverse (31002154521), we get a palindrome (43547274534).

The spelling of 12545120013 in words is "twelve billion, five hundred forty-five million, one hundred twenty thousand, thirteen".