123422612609 has 2 divisors, whose sum is σ = 123422612610. Its totient is φ = 123422612608.

The previous prime is 123422612603. The next prime is 123422612641. The reversal of 123422612609 is 906216224321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123383587600 + 39025009 = 351260^2 + 6247^2 .

It is a cyclic number.

It is not a de Polignac number, because 123422612609 - 2²⁴ = 123405835393 is a prime.

It is not a weakly prime, because it can be changed into another prime (123422612603) 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, 61711306304 + 61711306305.

It is an arithmetic number, because the mean of its divisors is an integer number (61711306305).

Almost surely, 2^123422612609 is an apocalyptic number.

It is an amenable number.

123422612609 is a deficient number, since it is larger than the sum of its proper divisors (1).

123422612609 is an equidigital number, since it uses as much as digits as its factorization.

123422612609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 123422612609 in words is "one hundred twenty-three billion, four hundred twenty-two million, six hundred twelve thousand, six hundred nine".