13433040243 has 56 divisors (see below), whose sum is σ = 23049743616. Its totient is φ = 7665289200.

The previous prime is 13433040233. The next prime is 13433040251. The reversal of 13433040243 is 34204033431.

It is not a de Polignac number, because 13433040243 - 2⁴ = 13433040227 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13433040233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 4953658 + ... + 4956368.

Almost surely, 2^13433040243 is an apocalyptic number.

13433040243 is a deficient number, since it is larger than the sum of its proper divisors (9616703373).

13433040243 is an frugal number, since it uses more digits than its factorization.

13433040243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707 (or 3692 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 13433040243 its reverse (34204033431), we get a palindrome (47637073674).

The spelling of 13433040243 in words is "thirteen billion, four hundred thirty-three million, forty thousand, two hundred forty-three".