340121104109 has 2 divisors, whose sum is σ = 340121104110. Its totient is φ = 340121104108.

The previous prime is 340121104097. The next prime is 340121104159. The reversal of 340121104109 is 901401121043.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 298747510084 + 41373594025 = 546578^2 + 203405^2 .

It is a cyclic number.

It is not a de Polignac number, because 340121104109 - 2⁸ = 340121103853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340121104159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170060552054 + 170060552055.

It is an arithmetic number, because the mean of its divisors is an integer number (170060552055).

Almost surely, 2^340121104109 is an apocalyptic number.

It is an amenable number.

340121104109 is a deficient number, since it is larger than the sum of its proper divisors (1).

340121104109 is an equidigital number, since it uses as much as digits as its factorization.

340121104109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 340121104109 in words is "three hundred forty billion, one hundred twenty-one million, one hundred four thousand, one hundred nine".