20020311320211 has 12 divisors (see below), whose sum is σ = 29188491271992. Its totient is φ = 13222137070656.

The previous prime is 20020311320189. The next prime is 20020311320281. The reversal of 20020311320211 is 11202311302002.

20020311320211 is a `hidden beast` number, since 2 + 0 + 0 + 20 + 311 + 320 + 2 + 11 = 666.

It is not a de Polignac number, because 20020311320211 - 2¹⁵ = 20020311287443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20020311320281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10394760886 + ... + 10394762811.

It is an arithmetic number, because the mean of its divisors is an integer number (2432374272666).

Almost surely, 2^{20020311320211} is an apocalyptic number.

20020311320211 is a deficient number, since it is larger than the sum of its proper divisors (9168179951781).

20020311320211 is a wasteful number, since it uses less digits than its factorization.

20020311320211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20789523810 (or 20789523807 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20020311320211 its reverse (11202311302002), we get a palindrome (31222622622213).

The spelling of 20020311320211 in words is "twenty trillion, twenty billion, three hundred eleven million, three hundred twenty thousand, two hundred eleven".