13133434243 has 4 divisors (see below), whose sum is σ = 13199431600. Its totient is φ = 13067436888.

The previous prime is 13133434211. The next prime is 13133434283. The reversal of 13133434243 is 34243433131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34243433131 = 29 ⋅1180808039.

It is not a de Polignac number, because 13133434243 - 2⁵ = 13133434211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13133434283) 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, 32998380 + ... + 32998777.

It is an arithmetic number, because the mean of its divisors is an integer number (3299857900).

Almost surely, 2^13133434243 is an apocalyptic number.

13133434243 is a deficient number, since it is larger than the sum of its proper divisors (65997357).

13133434243 is an equidigital number, since it uses as much as digits as its factorization.

13133434243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65997356.

The product of its digits is 31104, while the sum is 31.

Adding to 13133434243 its reverse (34243433131), we get a palindrome (47376867374).

The spelling of 13133434243 in words is "thirteen billion, one hundred thirty-three million, four hundred thirty-four thousand, two hundred forty-three".