311112230123 has 12 divisors (see below), whose sum is σ = 344858576880. Its totient is φ = 280080569472.

The previous prime is 311112230113. The next prime is 311112230129. The reversal of 311112230123 is 321032211113.

It is a happy number.

It is not a de Polignac number, because 311112230123 - 2³⁰ = 310038488299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 311112230095 and 311112230104.

It is not an unprimeable number, because it can be changed into a prime (311112230129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23395808 + ... + 23409101.

It is an arithmetic number, because the mean of its divisors is an integer number (28738214740).

Almost surely, 2^311112230123 is an apocalyptic number.

311112230123 is a deficient number, since it is larger than the sum of its proper divisors (33746346757).

311112230123 is a wasteful number, since it uses less digits than its factorization.

311112230123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46804966 (or 46804949 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 311112230123 its reverse (321032211113), we get a palindrome (632144441236).

The spelling of 311112230123 in words is "three hundred eleven billion, one hundred twelve million, two hundred thirty thousand, one hundred twenty-three".