2103312112 has 20 divisors (see below), whose sum is σ = 4445637336. Its totient is φ = 956050880.

The previous prime is 2103312089. The next prime is 2103312121. The reversal of 2103312112 is 2112133012.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5975143 + ... + 5975494.

Almost surely, 2^2103312112 is an apocalyptic number.

2103312112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2103312112 is an abundant number, since it is smaller than the sum of its proper divisors (2342325224).

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

2103312112 is a wasteful number, since it uses less digits than its factorization.

2103312112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11950656 (or 11950650 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2103312112 is about 45861.8808162073. The cubic root of 2103312112 is about 1281.2520528795.

Adding to 2103312112 its reverse (2112133012), we get a palindrome (4215445124).

Subtracting 2103312112 from its reverse (2112133012), we obtain a square (8820900 = 2970²).

The spelling of 2103312112 in words is "two billion, one hundred three million, three hundred twelve thousand, one hundred twelve".