13105403153221 has 4 divisors (see below), whose sum is σ = 13117284752832. Its totient is φ = 13093521553612.

The previous prime is 13105403153203. The next prime is 13105403153279. The reversal of 13105403153221 is 12235130450131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13105403153221 - 2⁴¹ = 10906379897669 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 (13105403153021) 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, 5940798151 + ... + 5940800356.

It is an arithmetic number, because the mean of its divisors is an integer number (3279321188208).

Almost surely, 2^{13105403153221} is an apocalyptic number.

It is an amenable number.

13105403153221 is a deficient number, since it is larger than the sum of its proper divisors (11881599611).

13105403153221 is a wasteful number, since it uses less digits than its factorization.

13105403153221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11881599610.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 13105403153221 in words is "thirteen trillion, one hundred five billion, four hundred three million, one hundred fifty-three thousand, two hundred twenty-one".