20321140203 has 36 divisors (see below), whose sum is σ = 36771597408. Its totient is φ = 10718840160.

The previous prime is 20321140193. The next prime is 20321140207. The reversal of 20321140203 is 30204112302.

20321140203 is a `hidden beast` number, since 2 + 0 + 321 + 140 + 203 = 666.

It is not a de Polignac number, because 20321140203 - 2⁵ = 20321140171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20321140207) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1766563 + ... + 1778028.

Almost surely, 2^20321140203 is an apocalyptic number.

20321140203 is a deficient number, since it is larger than the sum of its proper divisors (16450457205).

20321140203 is a wasteful number, since it uses less digits than its factorization.

20321140203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3544624 (or 3544614 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20321140203 its reverse (30204112302), we get a palindrome (50525252505).

The spelling of 20321140203 in words is "twenty billion, three hundred twenty-one million, one hundred forty thousand, two hundred three".