13240332443 has 4 divisors (see below), whose sum is σ = 14258819568. Its totient is φ = 12221845320.

The previous prime is 13240332437. The next prime is 13240332463. The reversal of 13240332443 is 34423304231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34423304231 = 31019 ⋅1109749.

It is a cyclic number.

It is not a de Polignac number, because 13240332443 - 2⁸ = 13240332187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13240332463) 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, 509243543 + ... + 509243568.

It is an arithmetic number, because the mean of its divisors is an integer number (3564704892).

Almost surely, 2^13240332443 is an apocalyptic number.

13240332443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13240332443 is a deficient number, since it is larger than the sum of its proper divisors (1018487125).

13240332443 is a wasteful number, since it uses less digits than its factorization.

13240332443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018487124.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 13240332443 its reverse (34423304231), we get a palindrome (47663636674).

The spelling of 13240332443 in words is "thirteen billion, two hundred forty million, three hundred thirty-two thousand, four hundred forty-three".