1243044011103 has 8 divisors (see below), whose sum is σ = 1658772029616. Its totient is φ = 828006000000.

The previous prime is 1243044011087. The next prime is 1243044011123. The reversal of 1243044011103 is 3011104403421.

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

It is not a de Polignac number, because 1243044011103 - 2⁴ = 1243044011087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243044011123) 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, 172497648 + ... + 172504853.

It is an arithmetic number, because the mean of its divisors is an integer number (207346503702).

Almost surely, 2^{1243044011103} is an apocalyptic number.

1243044011103 is a deficient number, since it is larger than the sum of its proper divisors (415728018513).

1243044011103 is a wasteful number, since it uses less digits than its factorization.

1243044011103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345003705.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1243044011103 its reverse (3011104403421), we get a palindrome (4254148414524).

The spelling of 1243044011103 in words is "one trillion, two hundred forty-three billion, forty-four million, eleven thousand, one hundred three".