13645120303 has 4 divisors (see below), whose sum is σ = 13837305168. Its totient is φ = 13452935440.

The previous prime is 13645120289. The next prime is 13645120331. The reversal of 13645120303 is 30302154631.

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 13645120303 - 2⁹ = 13645119791 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 (13645120343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96092326 + ... + 96092467.

It is an arithmetic number, because the mean of its divisors is an integer number (3459326292).

Almost surely, 2^13645120303 is an apocalyptic number.

13645120303 is a deficient number, since it is larger than the sum of its proper divisors (192184865).

13645120303 is an equidigital number, since it uses as much as digits as its factorization.

13645120303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192184864.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 13645120303 its reverse (30302154631), we get a palindrome (43947274934).

The spelling of 13645120303 in words is "thirteen billion, six hundred forty-five million, one hundred twenty thousand, three hundred three".