2103113112 has 48 divisors (see below), whose sum is σ = 5585275560. Its totient is φ = 659798016.

The previous prime is 2103113011. The next prime is 2103113113. The reversal of 2103113112 is 2113113012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2103113091 and 2103113100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103113113) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 144673 + ... + 158544.

Almost surely, 2^2103113112 is an apocalyptic number.

It is an amenable number.

2103113112 is an abundant number, since it is smaller than the sum of its proper divisors (3482162448).

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

2103113112 is a wasteful number, since it uses less digits than its factorization.

2103113112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303260 (or 303239 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 2103113112 is about 45859.7112071151. The cubic root of 2103113112 is about 1281.2116440407.

Adding to 2103113112 its reverse (2113113012), we get a palindrome (4216226124).

It can be divided in two parts, 21031 and 13112, that added together give a palindrome (34143).

The spelling of 2103113112 in words is "two billion, one hundred three million, one hundred thirteen thousand, one hundred twelve".