20303111003103 has 64 divisors (see below), whose sum is σ = 32226960384000. Its totient is φ = 12595219366752.

The previous prime is 20303111003099. The next prime is 20303111003191. The reversal of 20303111003103 is 30130011130302.

It is a happy number.

20303111003103 is a `hidden beast` number, since 2 + 0 + 30 + 311 + 10 + 0 + 310 + 3 = 666.

It is not a de Polignac number, because 20303111003103 - 2² = 20303111003099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20303111003603) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11075578 + ... + 12777896.

It is an arithmetic number, because the mean of its divisors is an integer number (503546256000).

Almost surely, 2^{20303111003103} is an apocalyptic number.

20303111003103 is a deficient number, since it is larger than the sum of its proper divisors (11923849380897).

20303111003103 is a wasteful number, since it uses less digits than its factorization.

20303111003103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702761 (or 1702755 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 20303111003103 its reverse (30130011130302), we get a palindrome (50433122133405).

The spelling of 20303111003103 in words is "twenty trillion, three hundred three billion, one hundred eleven million, three thousand, one hundred three".