2105523324 has 72 divisors (see below), whose sum is σ = 5424531840. Its totient is φ = 688413600.

The previous prime is 2105523311. The next prime is 2105523331. The reversal of 2105523324 is 4233255012.

It is a happy number.

2105523324 is a `hidden beast` number, since 2 + 105 + 523 + 32 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1339459 + ... + 1341029.

It is an arithmetic number, because the mean of its divisors is an integer number (75340720).

Almost surely, 2^2105523324 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 2105523324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2712265920).

2105523324 is an abundant number, since it is smaller than the sum of its proper divisors (3319008516).

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

2105523324 is a wasteful number, since it uses less digits than its factorization.

2105523324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271 (or 2266 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2105523324 is about 45885.9817809317. The cubic root of 2105523324 is about 1281.7008890521.

Adding to 2105523324 its reverse (4233255012), we get a palindrome (6338778336).

The spelling of 2105523324 in words is "two billion, one hundred five million, five hundred twenty-three thousand, three hundred twenty-four".