121663301 has 2 divisors, whose sum is σ = 121663302. Its totient is φ = 121663300.

The previous prime is 121663279. The next prime is 121663331. The reversal of 121663301 is 103366121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121660900 + 2401 = 11030^2 + 49^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121663301 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121663331) 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, 60831650 + 60831651.

It is an arithmetic number, because the mean of its divisors is an integer number (60831651).

Almost surely, 2^121663301 is an apocalyptic number.

It is an amenable number.

121663301 is a deficient number, since it is larger than the sum of its proper divisors (1).

121663301 is an equidigital number, since it uses as much as digits as its factorization.

121663301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 121663301 is about 11030.1088389916. The cubic root of 121663301 is about 495.5108843010.

The spelling of 121663301 in words is "one hundred twenty-one million, six hundred sixty-three thousand, three hundred one".