201311313111 has 48 divisors (see below), whose sum is σ = 309546906240. Its totient is φ = 125714047680.

The previous prime is 201311313109. The next prime is 201311313179. The reversal of 201311313111 is 111313113102.

It is not a de Polignac number, because 201311313111 - 2¹ = 201311313109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201311313191) 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, 6188856 + ... + 6221298.

It is an arithmetic number, because the mean of its divisors is an integer number (6448893880).

Almost surely, 2^201311313111 is an apocalyptic number.

201311313111 is a deficient number, since it is larger than the sum of its proper divisors (108235593129).

201311313111 is a wasteful number, since it uses less digits than its factorization.

201311313111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32876 (or 32873 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 201311313111 its reverse (111313113102), we get a palindrome (312624426213).

Subtracting from 201311313111 its reverse (111313113102), we obtain a square (89998200009 = 299997²).

The spelling of 201311313111 in words is "two hundred one billion, three hundred eleven million, three hundred thirteen thousand, one hundred eleven".