120216307 has 2 divisors, whose sum is σ = 120216308. Its totient is φ = 120216306.

The previous prime is 120216263. The next prime is 120216323. The reversal of 120216307 is 703612021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120216307 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (120216337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60108153 + 60108154.

It is an arithmetic number, because the mean of its divisors is an integer number (60108154).

Almost surely, 2^120216307 is an apocalyptic number.

120216307 is a deficient number, since it is larger than the sum of its proper divisors (1).

120216307 is an equidigital number, since it uses as much as digits as its factorization.

120216307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 120216307 is about 10964.3197235396. The cubic root of 120216307 is about 493.5386030469.

Adding to 120216307 its reverse (703612021), we get a palindrome (823828328).

The spelling of 120216307 in words is "one hundred twenty million, two hundred sixteen thousand, three hundred seven".