123408068239 has 2 divisors, whose sum is σ = 123408068240. Its totient is φ = 123408068238.

The previous prime is 123408068221. The next prime is 123408068243. The reversal of 123408068239 is 932860804321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123408068239 - 2¹³ = 123408060047 is a prime.

It is a super-2 number, since 2×123408068239² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123408068249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61704034119 + 61704034120.

It is an arithmetic number, because the mean of its divisors is an integer number (61704034120).

Almost surely, 2^123408068239 is an apocalyptic number.

123408068239 is a deficient number, since it is larger than the sum of its proper divisors (1).

123408068239 is an equidigital number, since it uses as much as digits as its factorization.

123408068239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 123408068239 in words is "one hundred twenty-three billion, four hundred eight million, sixty-eight thousand, two hundred thirty-nine".