123534452047 has 2 divisors, whose sum is σ = 123534452048. Its totient is φ = 123534452046.

The previous prime is 123534452009. The next prime is 123534452051. The reversal of 123534452047 is 740254435321.

It is a strong prime.

It is an emirp because it is prime and its reverse (740254435321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123534452047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123534453047) 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, 61767226023 + 61767226024.

It is an arithmetic number, because the mean of its divisors is an integer number (61767226024).

Almost surely, 2^123534452047 is an apocalyptic number.

123534452047 is a deficient number, since it is larger than the sum of its proper divisors (1).

123534452047 is an equidigital number, since it uses as much as digits as its factorization.

123534452047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 403200, while the sum is 40.

Adding to 123534452047 its reverse (740254435321), we get a palindrome (863788887368).

The spelling of 123534452047 in words is "one hundred twenty-three billion, five hundred thirty-four million, four hundred fifty-two thousand, forty-seven".