311112112103 has 16 divisors (see below), whose sum is σ = 341549260416. Its totient is φ = 281610151680.

The previous prime is 311112112037. The next prime is 311112112111. The reversal of 311112112103 is 301211211113.

It is not a de Polignac number, because 311112112103 - 2⁸ = 311112111847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311112112163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1168451 + ... + 1409787.

It is an arithmetic number, because the mean of its divisors is an integer number (21346828776).

Almost surely, 2^311112112103 is an apocalyptic number.

311112112103 is a deficient number, since it is larger than the sum of its proper divisors (30437148313).

311112112103 is a wasteful number, since it uses less digits than its factorization.

311112112103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243274.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 311112112103 its reverse (301211211113), we get a palindrome (612323323216).

The spelling of 311112112103 in words is "three hundred eleven billion, one hundred twelve million, one hundred twelve thousand, one hundred three".