20205310203 has 24 divisors (see below), whose sum is σ = 33279337728. Its totient is φ = 11702621952.

The previous prime is 20205310189. The next prime is 20205310207. The reversal of 20205310203 is 30201350202.

It is not a de Polignac number, because 20205310203 - 2⁵ = 20205310171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20205310207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5077275 + ... + 5081252.

It is an arithmetic number, because the mean of its divisors is an integer number (1386639072).

Almost surely, 2^20205310203 is an apocalyptic number.

20205310203 is a deficient number, since it is larger than the sum of its proper divisors (13074027525).

20205310203 is a wasteful number, since it uses less digits than its factorization.

20205310203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10158563 (or 10158560 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

Adding to 20205310203 its reverse (30201350202), we get a palindrome (50406660405).

The spelling of 20205310203 in words is "twenty billion, two hundred five million, three hundred ten thousand, two hundred three".