2103111112 has 16 divisors (see below), whose sum is σ = 3972118860. Its totient is φ = 1043879424.

The previous prime is 2103111107. The next prime is 2103111137. The reversal of 2103111112 is 2111113012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2064248356 + 38862756 = 45434^2 + 6234^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2103111092 and 2103111101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 958353 + ... + 960544.

Almost surely, 2^2103111112 is an apocalyptic number.

It is an amenable number.

2103111112 is a deficient number, since it is larger than the sum of its proper divisors (1869007748).

2103111112 is a wasteful number, since it uses less digits than its factorization.

2103111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919040 (or 1919036 counting only the distinct ones).

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

The square root of 2103111112 is about 45859.6894014776. The cubic root of 2103111112 is about 1281.2112379088.

Adding to 2103111112 its reverse (2111113012), we get a palindrome (4214224124).

The spelling of 2103111112 in words is "two billion, one hundred three million, one hundred eleven thousand, one hundred twelve".