320123011111011 has 6 divisors (see below), whose sum is σ = 462399904938140. Its totient is φ = 213415340740668.

The previous prime is 320123011111009. The next prime is 320123011111037. The reversal of 320123011111011 is 110111110321023.

320123011111011 is a `hidden beast` number, since 3 + 201 + 230 + 111 + 110 + 11 = 666.

It is not a de Polignac number, because 320123011111011 - 2¹ = 320123011111009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320123011111411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17784611728381 + ... + 17784611728398.

Almost surely, 2^{320123011111011} is an apocalyptic number.

320123011111011 is a deficient number, since it is larger than the sum of its proper divisors (142276893827129).

320123011111011 is a wasteful number, since it uses less digits than its factorization.

320123011111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35569223456785 (or 35569223456782 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 320123011111011 its reverse (110111110321023), we get a palindrome (430234121432034).

The spelling of 320123011111011 in words is "three hundred twenty trillion, one hundred twenty-three billion, eleven million, one hundred eleven thousand, eleven".