13405430320501 has 4 divisors (see below), whose sum is σ = 13428036443052. Its totient is φ = 13382824197952.

The previous prime is 13405430320483. The next prime is 13405430320691. The reversal of 13405430320501 is 10502303450431.

13405430320501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2985123518001 + 10420306802500 = 1727751^2 + 3228050^2 .

It is a cyclic number.

It is not a de Polignac number, because 13405430320501 - 2⁹ = 13405430319989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13405430320001) 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, 11303060386 + ... + 11303061571.

It is an arithmetic number, because the mean of its divisors is an integer number (3357009110763).

Almost surely, 2^{13405430320501} is an apocalyptic number.

It is an amenable number.

13405430320501 is a deficient number, since it is larger than the sum of its proper divisors (22606122551).

13405430320501 is an equidigital number, since it uses as much as digits as its factorization.

13405430320501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22606122550.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 13405430320501 its reverse (10502303450431), we get a palindrome (23907733770932).

The spelling of 13405430320501 in words is "thirteen trillion, four hundred five billion, four hundred thirty million, three hundred twenty thousand, five hundred one".