20020320211 has 8 divisors (see below), whose sum is σ = 20957211648. Its totient is φ = 19101621000.

The previous prime is 20020320209. The next prime is 20020320239. The reversal of 20020320211 is 11202302002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20020320211 - 2¹ = 20020320209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20020320191 and 20020320200.

It is not an unprimeable number, because it can be changed into a prime (20020320241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4545805 + ... + 4550206.

It is an arithmetic number, because the mean of its divisors is an integer number (2619651456).

Almost surely, 2^20020320211 is an apocalyptic number.

20020320211 is a deficient number, since it is larger than the sum of its proper divisors (936891437).

20020320211 is an equidigital number, since it uses as much as digits as its factorization.

20020320211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9096113.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20020320211 its reverse (11202302002), we get a palindrome (31222622213).

The spelling of 20020320211 in words is "twenty billion, twenty million, three hundred twenty thousand, two hundred eleven".