1243040413203 has 12 divisors (see below), whose sum is σ = 1809640638208. Its totient is φ = 822168461520.

The previous prime is 1243040413201. The next prime is 1243040413213. The reversal of 1243040413203 is 3023140403421.

1243040413203 is a `hidden beast` number, since 1 + 2 + 4 + 3 + 0 + 40 + 413 + 203 = 666.

It is not a de Polignac number, because 1243040413203 - 2¹ = 1243040413201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1243040413201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 543761068 + ... + 543763353.

Almost surely, 2^{1243040413203} is an apocalyptic number.

1243040413203 is a deficient number, since it is larger than the sum of its proper divisors (566600225005).

1243040413203 is a wasteful number, since it uses less digits than its factorization.

1243040413203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087524554 (or 1087524551 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 1243040413203 its reverse (3023140403421), we get a palindrome (4266180816624).

The spelling of 1243040413203 in words is "one trillion, two hundred forty-three billion, forty million, four hundred thirteen thousand, two hundred three".