121351667 has 2 divisors, whose sum is σ = 121351668. Its totient is φ = 121351666.

The previous prime is 121351649. The next prime is 121351669. The reversal of 121351667 is 766153121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121351667 - 2¹⁰ = 121350643 is a prime.

Together with 121351669, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121351669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60675833 + 60675834.

It is an arithmetic number, because the mean of its divisors is an integer number (60675834).

Almost surely, 2^121351667 is an apocalyptic number.

121351667 is a deficient number, since it is larger than the sum of its proper divisors (1).

121351667 is an equidigital number, since it uses as much as digits as its factorization.

121351667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 32.

The square root of 121351667 is about 11015.9732661259. The cubic root of 121351667 is about 495.0874477344.

The spelling of 121351667 in words is "one hundred twenty-one million, three hundred fifty-one thousand, six hundred sixty-seven".