20210103603 has 12 divisors (see below), whose sum is σ = 29195843040. Its totient is φ = 13471800336.

The previous prime is 20210103581. The next prime is 20210103647. The reversal of 20210103603 is 30630101202.

20210103603 is a `hidden beast` number, since 202 + 101 + 0 + 360 + 3 = 666.

It is not a de Polignac number, because 20210103603 - 2¹⁶ = 20210038067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20210103803) 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 11 ways as a sum of consecutive naturals, for example, 50923 + ... + 207396.

It is an arithmetic number, because the mean of its divisors is an integer number (2432986920).

Almost surely, 2^20210103603 is an apocalyptic number.

20210103603 is a deficient number, since it is larger than the sum of its proper divisors (8985739437).

20210103603 is a wasteful number, since it uses less digits than its factorization.

20210103603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267018 (or 267015 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20210103603 its reverse (30630101202), we get a palindrome (50840204805).

The spelling of 20210103603 in words is "twenty billion, two hundred ten million, one hundred three thousand, six hundred three".