13021105 has 8 divisors (see below), whose sum is σ = 16304832. Its totient is φ = 9963888.

The previous prime is 13021079. The next prime is 13021117. The reversal of 13021105 is 50112031.

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 13021105 - 2⁷ = 13020977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56499 + ... + 56728.

It is an arithmetic number, because the mean of its divisors is an integer number (2038104).

Almost surely, 2^13021105 is an apocalyptic number.

It is an amenable number.

13021105 is a deficient number, since it is larger than the sum of its proper divisors (3283727).

13021105 is a wasteful number, since it uses less digits than its factorization.

13021105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113255.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 13021105 is about 3608.4768254764. The cubic root of 13021105 is about 235.2606433569.

Adding to 13021105 its reverse (50112031), we get a palindrome (63133136).

The spelling of 13021105 in words is "thirteen million, twenty-one thousand, one hundred five".