13585848121 has 4 divisors (see below), whose sum is σ = 13842184932. Its totient is φ = 13329511312.

The previous prime is 13585848097. The next prime is 13585848137. The reversal of 13585848121 is 12184858531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12184858531 = 1447 ⋅8420773.

It can be written as a sum of positive squares in 2 ways, for example, as 4188678400 + 9397169721 = 64720^2 + 96939^2 .

It is a cyclic number.

It is not a de Polignac number, because 13585848121 - 2¹⁹ = 13585323833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13585848721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128168326 + ... + 128168431.

It is an arithmetic number, because the mean of its divisors is an integer number (3460546233).

Almost surely, 2^13585848121 is an apocalyptic number.

It is an amenable number.

13585848121 is a deficient number, since it is larger than the sum of its proper divisors (256336811).

13585848121 is an equidigital number, since it uses as much as digits as its factorization.

13585848121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256336810.

The product of its digits is 307200, while the sum is 46.

The spelling of 13585848121 in words is "thirteen billion, five hundred eighty-five million, eight hundred forty-eight thousand, one hundred twenty-one".