1100203444243 has 8 divisors (see below), whose sum is σ = 1118177464320. Its totient is φ = 1082275102920.

The previous prime is 1100203444181. The next prime is 1100203444247. The reversal of 1100203444243 is 3424443020011.

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

It is a cyclic number.

It is not a de Polignac number, because 1100203444243 - 2¹⁷ = 1100203313171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100203444247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11371123 + ... + 11467468.

It is an arithmetic number, because the mean of its divisors is an integer number (139772183040).

Almost surely, 2^{1100203444243} is an apocalyptic number.

1100203444243 is a deficient number, since it is larger than the sum of its proper divisors (17974020077).

1100203444243 is an equidigital number, since it uses as much as digits as its factorization.

1100203444243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22839377.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 1100203444243 its reverse (3424443020011), we get a palindrome (4524646464254).

The spelling of 1100203444243 in words is "one trillion, one hundred billion, two hundred three million, four hundred forty-four thousand, two hundred forty-three".