311122113303 has 4 divisors (see below), whose sum is σ = 414829484408. Its totient is φ = 207414742200.

The previous prime is 311122113301. The next prime is 311122113331. The reversal of 311122113303 is 303311221113.

It is a happy number.

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

It is not a de Polignac number, because 311122113303 - 2¹ = 311122113301 is a prime.

It is a super-2 number, since 2×311122113303² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 311122113303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311122113301) 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, 51853685548 + ... + 51853685553.

It is an arithmetic number, because the mean of its divisors is an integer number (103707371102).

Almost surely, 2^311122113303 is an apocalyptic number.

311122113303 is a deficient number, since it is larger than the sum of its proper divisors (103707371105).

311122113303 is a wasteful number, since it uses less digits than its factorization.

311122113303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103707371104.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 311122113303 its reverse (303311221113), we get a palindrome (614433334416).

The spelling of 311122113303 in words is "three hundred eleven billion, one hundred twenty-two million, one hundred thirteen thousand, three hundred three".