20103021103 has 16 divisors (see below), whose sum is σ = 22298429952. Its totient is φ = 17969148000.

The previous prime is 20103021061. The next prime is 20103021121. The reversal of 20103021103 is 30112030102.

It is a cyclic number.

It is not a de Polignac number, because 20103021103 - 2¹³ = 20103012911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20103021173) 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 15 ways as a sum of consecutive naturals, for example, 2942950 + ... + 2949772.

It is an arithmetic number, because the mean of its divisors is an integer number (1393651872).

Almost surely, 2^20103021103 is an apocalyptic number.

20103021103 is a deficient number, since it is larger than the sum of its proper divisors (2195408849).

20103021103 is a wasteful number, since it uses less digits than its factorization.

20103021103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11286.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20103021103 its reverse (30112030102), we get a palindrome (50215051205).

The spelling of 20103021103 in words is "twenty billion, one hundred three million, twenty-one thousand, one hundred three".