13113022121305 has 16 divisors (see below), whose sum is σ = 15940471299984. Its totient is φ = 10354434416640.

The previous prime is 13113022121267. The next prime is 13113022121447. The reversal of 13113022121305 is 50312122031131.

13113022121305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 79535844441 + 13033486276864 = 282021^2 + 3610192^2 .

It is not a de Polignac number, because 13113022121305 - 2³¹ = 13110874637657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13113022121305.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36061936 + ... + 36423745.

It is an arithmetic number, because the mean of its divisors is an integer number (996279456249).

Almost surely, 2^{13113022121305} is an apocalyptic number.

It is an amenable number.

13113022121305 is a deficient number, since it is larger than the sum of its proper divisors (2827449178679).

13113022121305 is an equidigital number, since it uses as much as digits as its factorization.

13113022121305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72486156.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 13113022121305 its reverse (50312122031131), we get a palindrome (63425144152436).

The spelling of 13113022121305 in words is "thirteen trillion, one hundred thirteen billion, twenty-two million, one hundred twenty-one thousand, three hundred five".