320021133111 has 12 divisors (see below), whose sum is σ = 470974498488. Its totient is φ = 209321998704.

The previous prime is 320021133073. The next prime is 320021133121. The reversal of 320021133111 is 111331120023.

320021133111 is a `hidden beast` number, since 320 + 0 + 2 + 1 + 1 + 331 + 11 = 666.

It is not a de Polignac number, because 320021133111 - 2¹¹ = 320021131063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320021133121) 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, 335451445 + ... + 335452398.

It is an arithmetic number, because the mean of its divisors is an integer number (39247874874).

Almost surely, 2^320021133111 is an apocalyptic number.

320021133111 is a deficient number, since it is larger than the sum of its proper divisors (150953365377).

320021133111 is a wasteful number, since it uses less digits than its factorization.

320021133111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670903902 (or 670903899 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 320021133111 its reverse (111331120023), we get a palindrome (431352253134).

The spelling of 320021133111 in words is "three hundred twenty billion, twenty-one million, one hundred thirty-three thousand, one hundred eleven".