123042450589 has 2 divisors, whose sum is σ = 123042450590. Its totient is φ = 123042450588.

The previous prime is 123042450523. The next prime is 123042450649. The reversal of 123042450589 is 985054240321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77189508900 + 45852941689 = 277830^2 + 214133^2 .

It is a cyclic number.

It is not a de Polignac number, because 123042450589 - 2²¹ = 123040353437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123042150589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61521225294 + 61521225295.

It is an arithmetic number, because the mean of its divisors is an integer number (61521225295).

Almost surely, 2^123042450589 is an apocalyptic number.

It is an amenable number.

123042450589 is a deficient number, since it is larger than the sum of its proper divisors (1).

123042450589 is an equidigital number, since it uses as much as digits as its factorization.

123042450589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 123042450589 in words is "one hundred twenty-three billion, forty-two million, four hundred fifty thousand, five hundred eighty-nine".