320311123011 has 24 divisors (see below), whose sum is σ = 506324944944. Its totient is φ = 193515543360.

The previous prime is 320311123009. The next prime is 320311123061. The reversal of 320311123011 is 110321113023.

320311123011 is a `hidden beast` number, since 320 + 3 + 111 + 230 + 1 + 1 = 666.

It is not a de Polignac number, because 320311123011 - 2¹ = 320311123009 is a prime.

It is a super-2 number, since 2×320311123011² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320311123061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5071876 + ... + 5134641.

It is an arithmetic number, because the mean of its divisors is an integer number (21096872706).

Almost surely, 2^320311123011 is an apocalyptic number.

320311123011 is a deficient number, since it is larger than the sum of its proper divisors (186013821933).

320311123011 is a wasteful number, since it uses less digits than its factorization.

320311123011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10206851 (or 10206848 counting only the distinct ones).

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

Adding to 320311123011 its reverse (110321113023), we get a palindrome (430632236034).

The spelling of 320311123011 in words is "three hundred twenty billion, three hundred eleven million, one hundred twenty-three thousand, eleven".