121245107 has 2 divisors, whose sum is σ = 121245108. Its totient is φ = 121245106.

The previous prime is 121245097. The next prime is 121245119. The reversal of 121245107 is 701542121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121245107 - 2¹⁸ = 120982963 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121245127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60622553 + 60622554.

It is an arithmetic number, because the mean of its divisors is an integer number (60622554).

Almost surely, 2^121245107 is an apocalyptic number.

121245107 is a deficient number, since it is larger than the sum of its proper divisors (1).

121245107 is an equidigital number, since it uses as much as digits as its factorization.

121245107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 121245107 is about 11011.1355908462. The cubic root of 121245107 is about 494.9424917036.

Adding to 121245107 its reverse (701542121), we get a palindrome (822787228).

The spelling of 121245107 in words is "one hundred twenty-one million, two hundred forty-five thousand, one hundred seven".