311211331111113 has 32 divisors (see below), whose sum is σ = 439938669620736. Its totient is φ = 195011531870208.

The previous prime is 311211331111111. The next prime is 311211331111117. The reversal of 311211331111113 is 311111133112113.

It is not a de Polignac number, because 311211331111113 - 2¹ = 311211331111111 is a prime.

It is a super-2 number, since 2×311211331111113² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (311211331111111) 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, 165637495 + ... + 167505827.

It is an arithmetic number, because the mean of its divisors is an integer number (13748083425648).

Almost surely, 2^{311211331111113} is an apocalyptic number.

It is an amenable number.

311211331111113 is a deficient number, since it is larger than the sum of its proper divisors (128727338509623).

311211331111113 is a wasteful number, since it uses less digits than its factorization.

311211331111113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872673.

The product of its digits is 162, while the sum is 24.

Adding to 311211331111113 its reverse (311111133112113), we get a palindrome (622322464223226).

The spelling of 311211331111113 in words is "three hundred eleven trillion, two hundred eleven billion, three hundred thirty-one million, one hundred eleven thousand, one hundred thirteen".