20303211103 has 6 divisors (see below), whose sum is σ = 23618021136. Its totient is φ = 17402752332.

The previous prime is 20303211101. The next prime is 20303211109. The reversal of 20303211103 is 30111230302.

It is not a de Polignac number, because 20303211103 - 2¹ = 20303211101 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 (20303211101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 207175575 + ... + 207175672.

It is an arithmetic number, because the mean of its divisors is an integer number (3936336856).

Almost surely, 2^20303211103 is an apocalyptic number.

20303211103 is a deficient number, since it is larger than the sum of its proper divisors (3314810033).

20303211103 is an equidigital number, since it uses as much as digits as its factorization.

20303211103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414351261 (or 414351254 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20303211103 its reverse (30111230302), we get a palindrome (50414441405).

The spelling of 20303211103 in words is "twenty billion, three hundred three million, two hundred eleven thousand, one hundred three".