123918380527 has 2 divisors, whose sum is σ = 123918380528. Its totient is φ = 123918380526.

The previous prime is 123918380507. The next prime is 123918380549. The reversal of 123918380527 is 725083819321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123918380527 - 2¹⁵ = 123918347759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123918380507) 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, 61959190263 + 61959190264.

It is an arithmetic number, because the mean of its divisors is an integer number (61959190264).

Almost surely, 2^123918380527 is an apocalyptic number.

123918380527 is a deficient number, since it is larger than the sum of its proper divisors (1).

123918380527 is an equidigital number, since it uses as much as digits as its factorization.

123918380527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 123918380527 in words is "one hundred twenty-three billion, nine hundred eighteen million, three hundred eighty thousand, five hundred twenty-seven".