13105412153221 has 4 divisors (see below), whose sum is σ = 13145005543744. Its totient is φ = 13065818762700.

The previous prime is 13105412153189. The next prime is 13105412153227. The reversal of 13105412153221 is 12235121450131.

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 13105412153221 - 2⁵ = 13105412153189 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 (13105412153227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19796694765 + ... + 19796695426.

It is an arithmetic number, because the mean of its divisors is an integer number (3286251385936).

Almost surely, 2^{13105412153221} is an apocalyptic number.

It is an amenable number.

13105412153221 is a deficient number, since it is larger than the sum of its proper divisors (39593390523).

13105412153221 is an equidigital number, since it uses as much as digits as its factorization.

13105412153221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39593390522.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 13105412153221 in words is "thirteen trillion, one hundred five billion, four hundred twelve million, one hundred fifty-three thousand, two hundred twenty-one".