123502443193 has 2 divisors, whose sum is σ = 123502443194. Its totient is φ = 123502443192.

The previous prime is 123502443083. The next prime is 123502443223. The reversal of 123502443193 is 391344205321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122897922624 + 604520569 = 350568^2 + 24587^2 .

It is a cyclic number.

It is not a de Polignac number, because 123502443193 - 2⁹ = 123502442681 is a prime.

It is not a weakly prime, because it can be changed into another prime (123502441193) 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, 61751221596 + 61751221597.

It is an arithmetic number, because the mean of its divisors is an integer number (61751221597).

Almost surely, 2^123502443193 is an apocalyptic number.

It is an amenable number.

123502443193 is a deficient number, since it is larger than the sum of its proper divisors (1).

123502443193 is an equidigital number, since it uses as much as digits as its factorization.

123502443193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 123502443193 in words is "one hundred twenty-three billion, five hundred two million, four hundred forty-three thousand, one hundred ninety-three".