160009000121 has 2 divisors, whose sum is σ = 160009000122. Its totient is φ = 160009000120.

The previous prime is 160009000111. The next prime is 160009000133. The reversal of 160009000121 is 121000900061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113206004521 + 46802995600 = 336461^2 + 216340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-160009000121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 160009000093 and 160009000102.

It is not a weakly prime, because it can be changed into another prime (160009000111) by changing a digit.

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 as a sum of consecutive naturals, namely, 80004500060 + 80004500061.

It is an arithmetic number, because the mean of its divisors is an integer number (80004500061).

Almost surely, 2^160009000121 is an apocalyptic number.

It is an amenable number.

160009000121 is a deficient number, since it is larger than the sum of its proper divisors (1).

160009000121 is an equidigital number, since it uses as much as digits as its factorization.

160009000121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 160009000121 its reverse (121000900061), we get a palindrome (281009900182).

The spelling of 160009000121 in words is "one hundred sixty billion, nine million, one hundred twenty-one", and thus it is an aban number.