123003500563 has 2 divisors, whose sum is σ = 123003500564. Its totient is φ = 123003500562.

The previous prime is 123003500513. The next prime is 123003500593. The reversal of 123003500563 is 365005300321.

It is a strong prime.

It is an emirp because it is prime and its reverse (365005300321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123003500563 - 2¹³ = 123003492371 is a prime.

It is a super-2 number, since 2×123003500563² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123003500513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61501750281 + 61501750282.

It is an arithmetic number, because the mean of its divisors is an integer number (61501750282).

Almost surely, 2^123003500563 is an apocalyptic number.

123003500563 is a deficient number, since it is larger than the sum of its proper divisors (1).

123003500563 is an equidigital number, since it uses as much as digits as its factorization.

123003500563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 28.

Adding to 123003500563 its reverse (365005300321), we get a palindrome (488008800884).

The spelling of 123003500563 in words is "one hundred twenty-three billion, three million, five hundred thousand, five hundred sixty-three".