20130001171603 has 8 divisors (see below), whose sum is σ = 20744615184048. Its totient is φ = 19519100839584.

The previous prime is 20130001171583. The next prime is 20130001171619. The reversal of 20130001171603 is 30617110003102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20130001171603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20130001171703) 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, 928409101 + ... + 928430782.

It is an arithmetic number, because the mean of its divisors is an integer number (2593076898006).

Almost surely, 2^{20130001171603} is an apocalyptic number.

20130001171603 is a deficient number, since it is larger than the sum of its proper divisors (614614012445).

20130001171603 is a wasteful number, since it uses less digits than its factorization.

20130001171603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856840213.

The product of its (nonzero) digits is 756, while the sum is 25.

Adding to 20130001171603 its reverse (30617110003102), we get a palindrome (50747111174705).

The spelling of 20130001171603 in words is "twenty trillion, one hundred thirty billion, one million, one hundred seventy-one thousand, six hundred three".