311320103211 has 48 divisors (see below), whose sum is σ = 502753300000. Its totient is φ = 189271919808.

The previous prime is 311320103177. The next prime is 311320103219. The reversal of 311320103211 is 112301023113.

311320103211 is a `hidden beast` number, since 3 + 11 + 320 + 10 + 321 + 1 = 666.

It is not a de Polignac number, because 311320103211 - 2¹⁰ = 311320102187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311320103219) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2353665 + ... + 2482413.

Almost surely, 2^311320103211 is an apocalyptic number.

311320103211 is a deficient number, since it is larger than the sum of its proper divisors (191433196789).

311320103211 is a wasteful number, since it uses less digits than its factorization.

311320103211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128937 (or 128848 counting only the distinct ones).

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

Adding to 311320103211 its reverse (112301023113), we get a palindrome (423621126324).

The spelling of 311320103211 in words is "three hundred eleven billion, three hundred twenty million, one hundred three thousand, two hundred eleven".