13320043435 has 4 divisors (see below), whose sum is σ = 15984052128. Its totient is φ = 10656034744.

The previous prime is 13320043427. The next prime is 13320043441. The reversal of 13320043435 is 53434002331.

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 13320043435 - 2³ = 13320043427 is a prime.

It is a super-2 number, since 2×13320043435² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1332004339 + ... + 1332004348.

It is an arithmetic number, because the mean of its divisors is an integer number (3996013032).

Almost surely, 2^13320043435 is an apocalyptic number.

13320043435 is a deficient number, since it is larger than the sum of its proper divisors (2664008693).

13320043435 is an equidigital number, since it uses as much as digits as its factorization.

13320043435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2664008692.

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 13320043435 its reverse (53434002331), we get a palindrome (66754045766).

The spelling of 13320043435 in words is "thirteen billion, three hundred twenty million, forty-three thousand, four hundred thirty-five".