320021331211011 has 16 divisors (see below), whose sum is σ = 451795653548928. Its totient is φ = 200797327785600.

The previous prime is 320021331210937. The next prime is 320021331211019. The reversal of 320021331211011 is 110112133120023.

It is a de Polignac number, because none of the positive numbers 2^k-320021331211011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320021331211019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23595456 + ... + 34594626.

It is an arithmetic number, because the mean of its divisors is an integer number (28237228346808).

Almost surely, 2^{320021331211011} is an apocalyptic number.

320021331211011 is a deficient number, since it is larger than the sum of its proper divisors (131774322337917).

320021331211011 is a wasteful number, since it uses less digits than its factorization.

320021331211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11569682.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 320021331211011 its reverse (110112133120023), we get a palindrome (430133464331034).

The spelling of 320021331211011 in words is "three hundred twenty trillion, twenty-one billion, three hundred thirty-one million, two hundred eleven thousand, eleven".