311320303211 has 4 divisors (see below), whose sum is σ = 324855968592. Its totient is φ = 297784637832.

The previous prime is 311320303171. The next prime is 311320303367. The reversal of 311320303211 is 112303023113.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311320303211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (341320303211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6767832656 + ... + 6767832701.

It is an arithmetic number, because the mean of its divisors is an integer number (81213992148).

Almost surely, 2^311320303211 is an apocalyptic number.

311320303211 is a deficient number, since it is larger than the sum of its proper divisors (13535665381).

311320303211 is a wasteful number, since it uses less digits than its factorization.

311320303211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13535665380.

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

Adding to 311320303211 its reverse (112303023113), we get a palindrome (423623326324).

The spelling of 311320303211 in words is "three hundred eleven billion, three hundred twenty million, three hundred three thousand, two hundred eleven".