13155420105 has 48 divisors (see below), whose sum is σ = 23382463104. Its totient is φ = 6838191360.

The previous prime is 13155420079. The next prime is 13155420119. The reversal of 13155420105 is 50102455131.

13155420105 is a `hidden beast` number, since 1 + 3 + 1 + 554 + 2 + 0 + 105 = 666.

13155420105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13155420105 - 2⁵ = 13155420073 is a prime.

It is a super-2 number, since 2×13155420105² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2187012 + ... + 2193018.

It is an arithmetic number, because the mean of its divisors is an integer number (487134648).

Almost surely, 2^13155420105 is an apocalyptic number.

13155420105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13155420105 is a deficient number, since it is larger than the sum of its proper divisors (10227042999).

13155420105 is a wasteful number, since it uses less digits than its factorization.

13155420105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7246 (or 7243 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 13155420105 its reverse (50102455131), we get a palindrome (63257875236).

The spelling of 13155420105 in words is "thirteen billion, one hundred fifty-five million, four hundred twenty thousand, one hundred five".