123232430689 has 2 divisors, whose sum is σ = 123232430690. Its totient is φ = 123232430688.

The previous prime is 123232430639. The next prime is 123232430693. The reversal of 123232430689 is 986034232321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106776672289 + 16455758400 = 326767^2 + 128280^2 .

It is a cyclic number.

It is not a de Polignac number, because 123232430689 - 2²¹ = 123230333537 is a prime.

It is not a weakly prime, because it can be changed into another prime (123232430639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61616215344 + 61616215345.

It is an arithmetic number, because the mean of its divisors is an integer number (61616215345).

Almost surely, 2^123232430689 is an apocalyptic number.

It is an amenable number.

123232430689 is a deficient number, since it is larger than the sum of its proper divisors (1).

123232430689 is an equidigital number, since it uses as much as digits as its factorization.

123232430689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 123232430689 in words is "one hundred twenty-three billion, two hundred thirty-two million, four hundred thirty thousand, six hundred eighty-nine".