311330220113 has 4 divisors (see below), whose sum is σ = 339632967408. Its totient is φ = 283027472820.

The previous prime is 311330220107. The next prime is 311330220143. The reversal of 311330220113 is 311022033113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 311330220113 - 2¹⁰ = 311330219089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311330220143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14151373631 + ... + 14151373652.

It is an arithmetic number, because the mean of its divisors is an integer number (84908241852).

Almost surely, 2^311330220113 is an apocalyptic number.

It is an amenable number.

311330220113 is a deficient number, since it is larger than the sum of its proper divisors (28302747295).

311330220113 is a wasteful number, since it uses less digits than its factorization.

311330220113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28302747294.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 311330220113 its reverse (311022033113), we get a palindrome (622352253226).

The spelling of 311330220113 in words is "three hundred eleven billion, three hundred thirty million, two hundred twenty thousand, one hundred thirteen".