103111112 has 16 divisors (see below), whose sum is σ = 208205340. Its totient is φ = 47589696.

The previous prime is 103111111. The next prime is 103111133. The reversal of 103111112 is 211111301.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 103103716 + 7396 = 10154^2 + 86^2 .

It is a junction number, because it is equal to n+sod(n) for n = 103111093 and 103111102.

It is not an unprimeable number, because it can be changed into a prime (103111111) 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, 495623 + ... + 495830.

Almost surely, 2^103111112 is an apocalyptic number.

It is an amenable number.

103111112 is an abundant number, since it is smaller than the sum of its proper divisors (105094228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103111112 is a wasteful number, since it uses less digits than its factorization.

103111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991472 (or 991468 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 103111112 is about 10154.3641849207. The cubic root of 103111112 is about 468.9233117473.

Adding to 103111112 its reverse (211111301), we get a palindrome (314222413).

The spelling of 103111112 in words is "one hundred three million, one hundred eleven thousand, one hundred twelve".