311122221113 has 8 divisors (see below), whose sum is σ = 347299224096. Its totient is φ = 276260745600.

The previous prime is 311122221107. The next prime is 311122221121.

311122221113 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 311122221113 - 2¹⁸ = 311121958969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (311122221103) 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, 328881368 + ... + 328882313.

It is an arithmetic number, because the mean of its divisors is an integer number (43412403012).

Almost surely, 2^311122221113 is an apocalyptic number.

It is an amenable number.

311122221113 is a deficient number, since it is larger than the sum of its proper divisors (36177002983).

311122221113 is a wasteful number, since it uses less digits than its factorization.

311122221113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657763735.

The product of its digits is 144, while the sum is 20.

It can be divided in two parts, 311122 and 221113, that added together give a palindrome (532235).

The spelling of 311122221113 in words is "three hundred eleven billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred thirteen".