122043109 has 2 divisors, whose sum is σ = 122043110. Its totient is φ = 122043108.

The previous prime is 122043091. The next prime is 122043151. The reversal of 122043109 is 901340221.

Together with previous prime (122043091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91738084 + 30305025 = 9578^2 + 5505^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122043109 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122043109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122043179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61021554 + 61021555.

It is an arithmetic number, because the mean of its divisors is an integer number (61021555).

Almost surely, 2^122043109 is an apocalyptic number.

It is an amenable number.

122043109 is a deficient number, since it is larger than the sum of its proper divisors (1).

122043109 is an equidigital number, since it uses as much as digits as its factorization.

122043109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 122043109 is about 11047.3122975681. The cubic root of 122043109 is about 496.0259766247.

The spelling of 122043109 in words is "one hundred twenty-two million, forty-three thousand, one hundred nine".