320330021011 has 32 divisors (see below), whose sum is σ = 433899744768. Its totient is φ = 228368125440.

The previous prime is 320330020993. The next prime is 320330021051. The reversal of 320330021011 is 110120033023.

It is not a de Polignac number, because 320330021011 - 2¹¹ = 320330018963 is a prime.

It is a super-2 number, since 2×320330021011² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320330021051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1302861 + ... + 1529086.

It is an arithmetic number, because the mean of its divisors is an integer number (13559367024).

Almost surely, 2^320330021011 is an apocalyptic number.

320330021011 is a deficient number, since it is larger than the sum of its proper divisors (113569723757).

320330021011 is a wasteful number, since it uses less digits than its factorization.

320330021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832091.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 320330021011 its reverse (110120033023), we get a palindrome (430450054034).

The spelling of 320330021011 in words is "three hundred twenty billion, three hundred thirty million, twenty-one thousand, eleven".