20322311203 has 4 divisors (see below), whose sum is σ = 20340939528. Its totient is φ = 20303682880.

The previous prime is 20322311189. The next prime is 20322311239. The reversal of 20322311203 is 30211322302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20322311203 - 2⁵ = 20322311171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20322314203) 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 3 ways as a sum of consecutive naturals, for example, 9312526 + ... + 9314707.

It is an arithmetic number, because the mean of its divisors is an integer number (5085234882).

Almost surely, 2^20322311203 is an apocalyptic number.

20322311203 is a deficient number, since it is larger than the sum of its proper divisors (18628325).

20322311203 is a wasteful number, since it uses less digits than its factorization.

20322311203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18628324.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20322311203 its reverse (30211322302), we get a palindrome (50533633505).

The spelling of 20322311203 in words is "twenty billion, three hundred twenty-two million, three hundred eleven thousand, two hundred three".