121507307 has 2 divisors, whose sum is σ = 121507308. Its totient is φ = 121507306.

The previous prime is 121507301. The next prime is 121507327. The reversal of 121507307 is 703705121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121507307 - 2¹² = 121503211 is a prime.

It is not a weakly prime, because it can be changed into another prime (121507301) 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, 60753653 + 60753654.

It is an arithmetic number, because the mean of its divisors is an integer number (60753654).

Almost surely, 2^121507307 is an apocalyptic number.

121507307 is a deficient number, since it is larger than the sum of its proper divisors (1).

121507307 is an equidigital number, since it uses as much as digits as its factorization.

121507307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 121507307 is about 11023.0352897920. The cubic root of 121507307 is about 495.2990160168.

The spelling of 121507307 in words is "one hundred twenty-one million, five hundred seven thousand, three hundred seven".