311330322011 has 4 divisors (see below), whose sum is σ = 324866422992. Its totient is φ = 297794221032.

The previous prime is 311330321993. The next prime is 311330322013. The reversal of 311330322011 is 110223033113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 311330322011 - 2²⁶ = 311263213147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311330322013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6768050456 + ... + 6768050501.

It is an arithmetic number, because the mean of its divisors is an integer number (81216605748).

Almost surely, 2^311330322011 is an apocalyptic number.

311330322011 is a deficient number, since it is larger than the sum of its proper divisors (13536100981).

311330322011 is a wasteful number, since it uses less digits than its factorization.

311330322011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13536100980.

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

Adding to 311330322011 its reverse (110223033113), we get a palindrome (421553355124).

The spelling of 311330322011 in words is "three hundred eleven billion, three hundred thirty million, three hundred twenty-two thousand, eleven".