105531530543 has 4 divisors (see below), whose sum is σ = 105627731760. Its totient is φ = 105435329328.

The previous prime is 105531530527. The next prime is 105531530567. The reversal of 105531530543 is 345035135501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 345035135501 = 7 ⋅49290733643.

It is a cyclic number.

It is not a de Polignac number, because 105531530543 - 2⁴ = 105531530527 is a prime.

It is a super-2 number, since 2×105531530543² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105531530443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48098963 + ... + 48101156.

It is an arithmetic number, because the mean of its divisors is an integer number (26406932940).

Almost surely, 2^105531530543 is an apocalyptic number.

105531530543 is a deficient number, since it is larger than the sum of its proper divisors (96201217).

105531530543 is an equidigital number, since it uses as much as digits as its factorization.

105531530543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96201216.

The product of its (nonzero) digits is 67500, while the sum is 35.

The spelling of 105531530543 in words is "one hundred five billion, five hundred thirty-one million, five hundred thirty thousand, five hundred forty-three".