311112112 has 20 divisors (see below), whose sum is σ = 610412320. Its totient is φ = 153586368.

The previous prime is 311112101. The next prime is 311112119. The reversal of 311112112 is 211211113.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 311112092 and 311112101.

It is not an unprimeable number, because it can be changed into a prime (311112119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121803 + ... + 124330.

It is an arithmetic number, because the mean of its divisors is an integer number (30520616).

Almost surely, 2^311112112 is an apocalyptic number.

It is an amenable number.

311112112 is a deficient number, since it is larger than the sum of its proper divisors (299300208).

311112112 is a wasteful number, since it uses less digits than its factorization.

311112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246220 (or 246214 counting only the distinct ones).

The product of its digits is 12, while the sum is 13.

The square root of 311112112 is about 17638.3704462742. The cubic root of 311112112 is about 677.5982978519.

Adding to 311112112 its reverse (211211113), we get a palindrome (522323225).

Subtracting from 311112112 its reverse (211211113), we obtain a palindrome (99900999).

The spelling of 311112112 in words is "three hundred eleven million, one hundred twelve thousand, one hundred twelve".