124221243220073 has 2 divisors, whose sum is σ = 124221243220074. Its totient is φ = 124221243220072.

The previous prime is 124221243220033. The next prime is 124221243220079. The reversal of 124221243220073 is 370022342122421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119609044574464 + 4612198645609 = 10936592^2 + 2147603^2 .

It is a cyclic number.

It is not a de Polignac number, because 124221243220073 - 2³² = 124216948252777 is a prime.

It is not a weakly prime, because it can be changed into another prime (124221243220079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62110621610036 + 62110621610037.

It is an arithmetic number, because the mean of its divisors is an integer number (62110621610037).

Almost surely, 2^{124221243220073} is an apocalyptic number.

It is an amenable number.

124221243220073 is a deficient number, since it is larger than the sum of its proper divisors (1).

124221243220073 is an equidigital number, since it uses as much as digits as its factorization.

124221243220073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 35.

Adding to 124221243220073 its reverse (370022342122421), we get a palindrome (494243585342494).

The spelling of 124221243220073 in words is "one hundred twenty-four trillion, two hundred twenty-one billion, two hundred forty-three million, two hundred twenty thousand, seventy-three".