121840129067 has 2 divisors, whose sum is σ = 121840129068. Its totient is φ = 121840129066.

The previous prime is 121840129013. The next prime is 121840129079. The reversal of 121840129067 is 760921048121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121840129067 - 2⁶ = 121840129003 is a prime.

It is not a weakly prime, because it can be changed into another prime (121840129007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60920064533 + 60920064534.

It is an arithmetic number, because the mean of its divisors is an integer number (60920064534).

Almost surely, 2^121840129067 is an apocalyptic number.

121840129067 is a deficient number, since it is larger than the sum of its proper divisors (1).

121840129067 is an equidigital number, since it uses as much as digits as its factorization.

121840129067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 41.

The spelling of 121840129067 in words is "one hundred twenty-one billion, eight hundred forty million, one hundred twenty-nine thousand, sixty-seven".