121303873 has 2 divisors, whose sum is σ = 121303874. Its totient is φ = 121303872.

The previous prime is 121303849. The next prime is 121303901. The reversal of 121303873 is 378303121.

It is an a-pointer prime, because the next prime (121303901) can be obtained adding 121303873 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87291649 + 34012224 = 9343^2 + 5832^2 .

It is a cyclic number.

It is not a de Polignac number, because 121303873 - 2⁵ = 121303841 is a prime.

It is not a weakly prime, because it can be changed into another prime (121303813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60651936 + 60651937.

It is an arithmetic number, because the mean of its divisors is an integer number (60651937).

Almost surely, 2^121303873 is an apocalyptic number.

It is an amenable number.

121303873 is a deficient number, since it is larger than the sum of its proper divisors (1).

121303873 is an equidigital number, since it uses as much as digits as its factorization.

121303873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 121303873 is about 11013.8037480246. The cubic root of 121303873 is about 495.0224429507.

Adding to 121303873 its reverse (378303121), we get a palindrome (499606994).

The spelling of 121303873 in words is "one hundred twenty-one million, three hundred three thousand, eight hundred seventy-three".