121451107 has 2 divisors, whose sum is σ = 121451108. Its totient is φ = 121451106.

The previous prime is 121451069. The next prime is 121451147. The reversal of 121451107 is 701154121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121451107 is a prime.

It is not a weakly prime, because it can be changed into another prime (121451147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60725553 + 60725554.

It is an arithmetic number, because the mean of its divisors is an integer number (60725554).

Almost surely, 2^121451107 is an apocalyptic number.

121451107 is a deficient number, since it is larger than the sum of its proper divisors (1).

121451107 is an equidigital number, since it uses as much as digits as its factorization.

121451107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 121451107 is about 11020.4857878408. The cubic root of 121451107 is about 495.2226417420. Note that the first 3 decimals are identical.

The spelling of 121451107 in words is "one hundred twenty-one million, four hundred fifty-one thousand, one hundred seven".