12135614204603 has 4 divisors (see below), whose sum is σ = 12152492667360. Its totient is φ = 12118735741848.

The previous prime is 12135614204573. The next prime is 12135614204611. The reversal of 12135614204603 is 30640241653121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12135614204603 - 2¹⁰ = 12135614203579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12135614204633) 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, 8439230300 + ... + 8439231737.

It is an arithmetic number, because the mean of its divisors is an integer number (3038123166840).

Almost surely, 2^{12135614204603} is an apocalyptic number.

12135614204603 is a deficient number, since it is larger than the sum of its proper divisors (16878462757).

12135614204603 is an equidigital number, since it uses as much as digits as its factorization.

12135614204603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16878462756.

The product of its (nonzero) digits is 103680, while the sum is 38.

Adding to 12135614204603 its reverse (30640241653121), we get a palindrome (42775855857724).

The spelling of 12135614204603 in words is "twelve trillion, one hundred thirty-five billion, six hundred fourteen million, two hundred four thousand, six hundred three".