13105441121021 has 8 divisors (see below), whose sum is σ = 13147591244544. Its totient is φ = 13063292779680.

The previous prime is 13105441120999. The next prime is 13105441121039. The reversal of 13105441121021 is 12012114450131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13105441121021 - 2³⁴ = 13088261251837 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 (13105441121041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15162836 + ... + 16003826.

It is an arithmetic number, because the mean of its divisors is an integer number (1643448905568).

Almost surely, 2^{13105441121021} is an apocalyptic number.

It is an amenable number.

13105441121021 is a deficient number, since it is larger than the sum of its proper divisors (42150123523).

13105441121021 is an equidigital number, since it uses as much as digits as its factorization.

13105441121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891091.

The product of its (nonzero) digits is 960, while the sum is 26.

Adding to 13105441121021 its reverse (12012114450131), we get a palindrome (25117555571152).

The spelling of 13105441121021 in words is "thirteen trillion, one hundred five billion, four hundred forty-one million, one hundred twenty-one thousand, twenty-one".