311122210113 has 64 divisors (see below), whose sum is σ = 542636236800. Its totient is φ = 173689980480.

The previous prime is 311122210079. The next prime is 311122210151. The reversal of 311122210113 is 311012221113.

It is not a de Polignac number, because 311122210113 - 2⁸ = 311122209857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (311122210213) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1765306 + ... + 1933532.

It is an arithmetic number, because the mean of its divisors is an integer number (8478691200).

Almost surely, 2^311122210113 is an apocalyptic number.

311122210113 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

311122210113 is a deficient number, since it is larger than the sum of its proper divisors (231514026687).

311122210113 is a wasteful number, since it uses less digits than its factorization.

311122210113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168739 (or 168733 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 311122210113 its reverse (311012221113), we get a palindrome (622134431226).

The spelling of 311122210113 in words is "three hundred eleven billion, one hundred twenty-two million, two hundred ten thousand, one hundred thirteen".