1105405643243 has 8 divisors (see below), whose sum is σ = 1205906198256. Its totient is φ = 1004906610400.

The previous prime is 1105405643203. The next prime is 1105405643249. The reversal of 1105405643243 is 3423465045011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1105405643243 - 2⁶ = 1105405643179 is a prime.

It is a super-2 number, since 2×1105405643243² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1105405643197 and 1105405643206.

It is not an unprimeable number, because it can be changed into a prime (1105405643249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1574705 + ... + 2165757.

It is an arithmetic number, because the mean of its divisors is an integer number (150738274782).

Almost surely, 2^{1105405643243} is an apocalyptic number.

1105405643243 is a deficient number, since it is larger than the sum of its proper divisors (100500555013).

1105405643243 is a wasteful number, since it uses less digits than its factorization.

1105405643243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761085.

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 1105405643243 in words is "one trillion, one hundred five billion, four hundred five million, six hundred forty-three thousand, two hundred forty-three".