1243041344303 has 4 divisors (see below), whose sum is σ = 1356045102888. Its totient is φ = 1130037585720.

The previous prime is 1243041344269. The next prime is 1243041344317. The reversal of 1243041344303 is 3034431403421.

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 1243041344303 - 2⁶ = 1243041344239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1243041344303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243041344323) 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, 56501879276 + ... + 56501879297.

It is an arithmetic number, because the mean of its divisors is an integer number (339011275722).

Almost surely, 2^{1243041344303} is an apocalyptic number.

1243041344303 is a deficient number, since it is larger than the sum of its proper divisors (113003758585).

1243041344303 is a wasteful number, since it uses less digits than its factorization.

1243041344303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113003758584.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 1243041344303 its reverse (3034431403421), we get a palindrome (4277472747724).

The spelling of 1243041344303 in words is "one trillion, two hundred forty-three billion, forty-one million, three hundred forty-four thousand, three hundred three".