2105424431 has 16 divisors (see below), whose sum is σ = 2361569280. Its totient is φ = 1860187680.

The previous prime is 2105424413. The next prime is 2105424443. The reversal of 2105424431 is 1344245012.

It is a cyclic number.

It is not a de Polignac number, because 2105424431 - 2⁶ = 2105424367 is a prime.

It is a super-2 number, since 2×2105424431² = 8865624069303347522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2105424431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105424401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440030 + ... + 444788.

It is an arithmetic number, because the mean of its divisors is an integer number (147598080).

Almost surely, 2^2105424431 is an apocalyptic number.

2105424431 is a deficient number, since it is larger than the sum of its proper divisors (256144849).

2105424431 is a wasteful number, since it uses less digits than its factorization.

2105424431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5894.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 2105424431 is about 45884.9041733771. The cubic root of 2105424431 is about 1281.6808222704.

Adding to 2105424431 its reverse (1344245012), we get a palindrome (3449669443).

The spelling of 2105424431 in words is "two billion, one hundred five million, four hundred twenty-four thousand, four hundred thirty-one".