13163435012401 has 4 divisors (see below), whose sum is σ = 13163445849204. Its totient is φ = 13163424175600.

The previous prime is 13163435012393. The next prime is 13163435012411. The reversal of 13163435012401 is 10421053436131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 7018663324176 + 6144771688225 = 2649276^2 + 2478865^2 .

It is a cyclic number.

It is not a de Polignac number, because 13163435012401 - 2³ = 13163435012393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13163435012411) 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, 3327370 + ... + 6115411.

It is an arithmetic number, because the mean of its divisors is an integer number (3290861462301).

Almost surely, 2^{13163435012401} is an apocalyptic number.

It is an amenable number.

13163435012401 is a deficient number, since it is larger than the sum of its proper divisors (10836803).

13163435012401 is an equidigital number, since it uses as much as digits as its factorization.

13163435012401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10836802.

The product of its (nonzero) digits is 25920, while the sum is 34.

Adding to 13163435012401 its reverse (10421053436131), we get a palindrome (23584488448532).

The spelling of 13163435012401 in words is "thirteen trillion, one hundred sixty-three billion, four hundred thirty-five million, twelve thousand, four hundred one".