2105531124 has 48 divisors (see below), whose sum is σ = 5205328128. Its totient is φ = 660123648.

The previous prime is 2105531059. The next prime is 2105531137. The reversal of 2105531124 is 4211355012.

It is a happy number.

It is a super-2 number, since 2×2105531124² = 8866522628265406752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2105531094 and 2105531103.

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 15 ways as a sum of consecutive naturals, for example, 464292 + ... + 468804.

It is an arithmetic number, because the mean of its divisors is an integer number (108444336).

Almost surely, 2^2105531124 is an apocalyptic number.

It is an amenable number.

2105531124 is an abundant number, since it is smaller than the sum of its proper divisors (3099797004).

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

2105531124 is a wasteful number, since it uses less digits than its factorization.

2105531124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6824 (or 6822 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 2105531124 is about 45886.0667741309. The cubic root of 2105531124 is about 1281.7024717551.

Adding to 2105531124 its reverse (4211355012), we get a palindrome (6316886136).

The spelling of 2105531124 in words is "two billion, one hundred five million, five hundred thirty-one thousand, one hundred twenty-four".