13104302221 has 4 divisors (see below), whose sum is σ = 13115106652. Its totient is φ = 13093497792.

The previous prime is 13104302209. The next prime is 13104302231. The reversal of 13104302221 is 12220340131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1225700100 + 11878602121 = 35010^2 + 108989^2 .

It is a cyclic number.

It is not a de Polignac number, because 13104302221 - 2²¹ = 13102205069 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 (13104302231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5400396 + ... + 5402821.

It is an arithmetic number, because the mean of its divisors is an integer number (3278776663).

Almost surely, 2^13104302221 is an apocalyptic number.

It is an amenable number.

13104302221 is a deficient number, since it is larger than the sum of its proper divisors (10804431).

13104302221 is a wasteful number, since it uses less digits than its factorization.

13104302221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10804430.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13104302221 its reverse (12220340131), we get a palindrome (25324642352).

The spelling of 13104302221 in words is "thirteen billion, one hundred four million, three hundred two thousand, two hundred twenty-one".