105557543043 has 4 divisors (see below), whose sum is σ = 140743390728. Its totient is φ = 70371695360.

The previous prime is 105557542973. The next prime is 105557543099. The reversal of 105557543043 is 340345755501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105557543043 - 2²⁵ = 105523988611 is a prime.

It is a super-2 number, since 2×105557543043² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105557542986 and 105557543004.

It is not an unprimeable number, because it can be changed into a prime (105557543243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17592923838 + ... + 17592923843.

It is an arithmetic number, because the mean of its divisors is an integer number (35185847682).

Almost surely, 2^105557543043 is an apocalyptic number.

105557543043 is a deficient number, since it is larger than the sum of its proper divisors (35185847685).

105557543043 is an equidigital number, since it uses as much as digits as its factorization.

105557543043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35185847684.

The product of its (nonzero) digits is 630000, while the sum is 42.

The spelling of 105557543043 in words is "one hundred five billion, five hundred fifty-seven million, five hundred forty-three thousand, forty-three".