311321331113 has 16 divisors (see below), whose sum is σ = 339718787520. Its totient is φ = 283567915584.

The previous prime is 311321331107. The next prime is 311321331149. The reversal of 311321331113 is 311133123113.

It is a cyclic number.

It is not a de Polignac number, because 311321331113 - 2⁶ = 311321331049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (311321331913) 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 15 ways as a sum of consecutive naturals, for example, 720470 + ... + 1068512.

It is an arithmetic number, because the mean of its divisors is an integer number (21232424220).

Almost surely, 2^311321331113 is an apocalyptic number.

It is an amenable number.

311321331113 is a deficient number, since it is larger than the sum of its proper divisors (28397456407).

311321331113 is a wasteful number, since it uses less digits than its factorization.

311321331113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348968.

The product of its digits is 486, while the sum is 23.

Adding to 311321331113 its reverse (311133123113), we get a palindrome (622454454226).

The spelling of 311321331113 in words is "three hundred eleven billion, three hundred twenty-one million, three hundred thirty-one thousand, one hundred thirteen".