123984995452427 has 2 divisors, whose sum is σ = 123984995452428. Its totient is φ = 123984995452426.

The previous prime is 123984995452403. The next prime is 123984995452469. The reversal of 123984995452427 is 724254599489321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123984995452427 - 2⁴⁰ = 122885483824651 is a prime.

It is not a weakly prime, because it can be changed into another prime (123984995452627) 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, 61992497726213 + 61992497726214.

It is an arithmetic number, because the mean of its divisors is an integer number (61992497726214).

Almost surely, 2^{123984995452427} is an apocalyptic number.

123984995452427 is a deficient number, since it is larger than the sum of its proper divisors (1).

123984995452427 is an equidigital number, since it uses as much as digits as its factorization.

123984995452427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1567641600, while the sum is 74.

The spelling of 123984995452427 in words is "one hundred twenty-three trillion, nine hundred eighty-four billion, nine hundred ninety-five million, four hundred fifty-two thousand, four hundred twenty-seven".