124353923909 has 2 divisors, whose sum is σ = 124353923910. Its totient is φ = 124353923908.

The previous prime is 124353923893. The next prime is 124353923923. The reversal of 124353923909 is 909329353421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111385725025 + 12968198884 = 333745^2 + 113878^2 .

It is a cyclic number.

It is not a de Polignac number, because 124353923909 - 2⁴ = 124353923893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124353923999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62176961954 + 62176961955.

It is an arithmetic number, because the mean of its divisors is an integer number (62176961955).

Almost surely, 2^124353923909 is an apocalyptic number.

It is an amenable number.

124353923909 is a deficient number, since it is larger than the sum of its proper divisors (1).

124353923909 is an equidigital number, since it uses as much as digits as its factorization.

124353923909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1574640, while the sum is 50.

The spelling of 124353923909 in words is "one hundred twenty-four billion, three hundred fifty-three million, nine hundred twenty-three thousand, nine hundred nine".