2103133312 has 64 divisors (see below), whose sum is σ = 4886208000. Its totient is φ = 901324032.

The previous prime is 2103133289. The next prime is 2103133321. The reversal of 2103133312 is 2133313012.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 2103133312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19953 + ... + 67855.

It is an arithmetic number, because the mean of its divisors is an integer number (76347000).

Almost surely, 2^2103133312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2103133312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2443104000).

2103133312 is an abundant number, since it is smaller than the sum of its proper divisors (2783074688).

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

2103133312 is an frugal number, since it uses more digits than its factorization.

2103133312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47938 (or 47912 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2103133312 is about 45859.9314434725. The cubic root of 2103133312 is about 1281.2157459587.

Adding to 2103133312 its reverse (2133313012), we get a palindrome (4236446324).

The spelling of 2103133312 in words is "two billion, one hundred three million, one hundred thirty-three thousand, three hundred twelve".