123534539983 has 2 divisors, whose sum is σ = 123534539984. Its totient is φ = 123534539982.

The previous prime is 123534539969. The next prime is 123534540007. The reversal of 123534539983 is 389935435321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123534539983 is a prime.

It is a super-2 number, since 2×123534539983² (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 (123534539923) 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, 61767269991 + 61767269992.

It is an arithmetic number, because the mean of its divisors is an integer number (61767269992).

Almost surely, 2^123534539983 is an apocalyptic number.

123534539983 is a deficient number, since it is larger than the sum of its proper divisors (1).

123534539983 is an equidigital number, since it uses as much as digits as its factorization.

123534539983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10497600, while the sum is 55.

The spelling of 123534539983 in words is "one hundred twenty-three billion, five hundred thirty-four million, five hundred thirty-nine thousand, nine hundred eighty-three".