2105301312 has 84 divisors (see below), whose sum is σ = 6117252180. Its totient is φ = 692140032.

The previous prime is 2105301287. The next prime is 2105301323. The reversal of 2105301312 is 2131035012.

2105301312 is a `hidden beast` number, since 2 + 1 + 0 + 530 + 131 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1355417856 + 749883456 = 36816^2 + 27384^2 .

It is a super-2 number, since 2×2105301312² = 8864587228617842688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17014 + ... + 67082.

Almost surely, 2^2105301312 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 2105301312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3058626090).

2105301312 is an abundant number, since it is smaller than the sum of its proper divisors (4011950868).

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

2105301312 is a wasteful number, since it uses less digits than its factorization.

2105301312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50160 (or 50147 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 2105301312 is about 45883.5625469514. The cubic root of 2105301312 is about 1281.6558388142.

Adding to 2105301312 its reverse (2131035012), we get a palindrome (4236336324).

The spelling of 2105301312 in words is "two billion, one hundred five million, three hundred one thousand, three hundred twelve".