13160342821 has 8 divisors (see below), whose sum is σ = 13945990104. Its totient is φ = 12375974400.

The previous prime is 13160342813. The next prime is 13160342827. The reversal of 13160342821 is 12824306131.

It can be written as a sum of positive squares in 4 ways, for example, as 842450625 + 12317892196 = 29025^2 + 110986^2 .

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 13160342821 - 2³ = 13160342813 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 (13160342827) 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, 298480 + ... + 339721.

It is an arithmetic number, because the mean of its divisors is an integer number (1743248763).

Almost surely, 2^13160342821 is an apocalyptic number.

It is an amenable number.

13160342821 is a deficient number, since it is larger than the sum of its proper divisors (785647283).

13160342821 is a wasteful number, since it uses less digits than its factorization.

13160342821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639431.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 13160342821 its reverse (12824306131), we get a palindrome (25984648952).

The spelling of 13160342821 in words is "thirteen billion, one hundred sixty million, three hundred forty-two thousand, eight hundred twenty-one".