20030320203 has 16 divisors (see below), whose sum is σ = 27054174720. Its totient is φ = 13180119264.

The previous prime is 20030320187. The next prime is 20030320207. The reversal of 20030320203 is 30202303002.

It is not a de Polignac number, because 20030320203 - 2⁴ = 20030320187 is a prime.

It is a super-2 number, since 2×20030320203² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20030320207) 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, 796500 + ... + 821262.

It is an arithmetic number, because the mean of its divisors is an integer number (1690885920).

Almost surely, 2^20030320203 is an apocalyptic number.

20030320203 is a deficient number, since it is larger than the sum of its proper divisors (7023854517).

20030320203 is a wasteful number, since it uses less digits than its factorization.

20030320203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28258.

The product of its (nonzero) digits is 216, while the sum is 15.

Adding to 20030320203 its reverse (30202303002), we get a palindrome (50232623205).

The spelling of 20030320203 in words is "twenty billion, thirty million, three hundred twenty thousand, two hundred three".