121243301 has 2 divisors, whose sum is σ = 121243302. Its totient is φ = 121243300.

The previous prime is 121243259. The next prime is 121243319. The reversal of 121243301 is 103342121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69388900 + 51854401 = 8330^2 + 7201^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121243301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121243301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121243321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60621650 + 60621651.

It is an arithmetic number, because the mean of its divisors is an integer number (60621651).

Almost surely, 2^121243301 is an apocalyptic number.

It is an amenable number.

121243301 is a deficient number, since it is larger than the sum of its proper divisors (1).

121243301 is an equidigital number, since it uses as much as digits as its factorization.

121243301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 121243301 is about 11011.0535826505. The cubic root of 121243301 is about 494.9400342282.

Adding to 121243301 its reverse (103342121), we get a palindrome (224585422).

The spelling of 121243301 in words is "one hundred twenty-one million, two hundred forty-three thousand, three hundred one".