12117435325013 has 4 divisors (see below), whose sum is σ = 12644280339168. Its totient is φ = 11590590310860.

The previous prime is 12117435324983. The next prime is 12117435325027. The reversal of 12117435325013 is 31052353471121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12117435325013 - 2⁶ = 12117435324949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12117435325033) 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 3 ways as a sum of consecutive naturals, for example, 263422507043 + ... + 263422507088.

It is an arithmetic number, because the mean of its divisors is an integer number (3161070084792).

Almost surely, 2^{12117435325013} is an apocalyptic number.

It is an amenable number.

12117435325013 is a deficient number, since it is larger than the sum of its proper divisors (526845014155).

12117435325013 is an equidigital number, since it uses as much as digits as its factorization.

12117435325013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526845014154.

The product of its (nonzero) digits is 75600, while the sum is 38.

Adding to 12117435325013 its reverse (31052353471121), we get a palindrome (43169788796134).

The spelling of 12117435325013 in words is "twelve trillion, one hundred seventeen billion, four hundred thirty-five million, three hundred twenty-five thousand, thirteen".