13405504222523 has 24 divisors (see below), whose sum is σ = 16584129046800. Its totient is φ = 10773449100288.

The previous prime is 13405504222489. The next prime is 13405504222541. The reversal of 13405504222523 is 32522240550431.

It is not a de Polignac number, because 13405504222523 - 2⁸ = 13405504222267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13405504222423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74131538 + ... + 74312151.

It is an arithmetic number, because the mean of its divisors is an integer number (691005376950).

Almost surely, 2^{13405504222523} is an apocalyptic number.

13405504222523 is a deficient number, since it is larger than the sum of its proper divisors (3178624824277).

13405504222523 is a wasteful number, since it uses less digits than its factorization.

13405504222523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148443819 (or 148443812 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 13405504222523 its reverse (32522240550431), we get a palindrome (45927744772954).

The spelling of 13405504222523 in words is "thirteen trillion, four hundred five billion, five hundred four million, two hundred twenty-two thousand, five hundred twenty-three".