311122113311 has 8 divisors (see below), whose sum is σ = 346761488880. Its totient is φ = 277409190528.

The previous prime is 311122113301. The next prime is 311122113331. The reversal of 311122113311 is 113311221113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 311122113311 - 2¹⁸ = 311121851167 is a prime.

It is a super-2 number, since 2×311122113311² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311122113301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481612856 + ... + 481613501.

It is an arithmetic number, because the mean of its divisors is an integer number (43345186110).

Almost surely, 2^311122113311 is an apocalyptic number.

311122113311 is a deficient number, since it is larger than the sum of its proper divisors (35639375569).

311122113311 is a wasteful number, since it uses less digits than its factorization.

311122113311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963226393.

The product of its digits is 108, while the sum is 20.

Adding to 311122113311 its reverse (113311221113), we get a palindrome (424433334424).

The spelling of 311122113311 in words is "three hundred eleven billion, one hundred twenty-two million, one hundred thirteen thousand, three hundred eleven".