311320301213111 has 4 divisors (see below), whose sum is σ = 311320520165712. Its totient is φ = 311320082260512.

The previous prime is 311320301213107. The next prime is 311320301213179. The reversal of 311320301213111 is 111312103023113.

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 311320301213111 - 2² = 311320301213107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311320361213111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107329475 + ... + 110191908.

It is an arithmetic number, because the mean of its divisors is an integer number (77830130041428).

Almost surely, 2^{311320301213111} is an apocalyptic number.

311320301213111 is a deficient number, since it is larger than the sum of its proper divisors (218952601).

311320301213111 is a wasteful number, since it uses less digits than its factorization.

311320301213111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218952600.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 311320301213111 its reverse (111312103023113), we get a palindrome (422632404236224).

The spelling of 311320301213111 in words is "three hundred eleven trillion, three hundred twenty billion, three hundred one million, two hundred thirteen thousand, one hundred eleven".