108000121 has 2 divisors, whose sum is σ = 108000122. Its totient is φ = 108000120.

The previous prime is 108000107. The next prime is 108000169. The reversal of 108000121 is 121000801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87160896 + 20839225 = 9336^2 + 4565^2 .

It is an emirp because it is prime and its reverse (121000801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 108000121 - 2⁹ = 107999609 is a prime.

It is a super-2 number, since 2×108000121² = 23328052272029282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (108000421) 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 as a sum of consecutive naturals, namely, 54000060 + 54000061.

It is an arithmetic number, because the mean of its divisors is an integer number (54000061).

Almost surely, 2^108000121 is an apocalyptic number.

It is an amenable number.

108000121 is a deficient number, since it is larger than the sum of its proper divisors (1).

108000121 is an equidigital number, since it uses as much as digits as its factorization.

108000121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 108000121 is about 10392.3106670268. The cubic root of 108000121 is about 476.2204934381.

Adding to 108000121 its reverse (121000801), we get a palindrome (229000922).

The spelling of 108000121 in words is "one hundred eight million, one hundred twenty-one", and thus it is an aban number.