12723730206563 has 4 divisors (see below), whose sum is σ = 12723995536728. Its totient is φ = 12723464876400.

The previous prime is 12723730206557. The next prime is 12723730206569. The reversal of 12723730206563 is 36560203732721.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12723730206557) and next prime (12723730206569).

It is a cyclic number.

It is not a de Polignac number, because 12723730206563 - 2¹⁰ = 12723730205539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12723730206569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132593138 + ... + 132689063.

It is an arithmetic number, because the mean of its divisors is an integer number (3180998884182).

Almost surely, 2^{12723730206563} is an apocalyptic number.

12723730206563 is a deficient number, since it is larger than the sum of its proper divisors (265330165).

12723730206563 is an equidigital number, since it uses as much as digits as its factorization.

12723730206563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265330164.

The product of its (nonzero) digits is 1905120, while the sum is 47.

The spelling of 12723730206563 in words is "twelve trillion, seven hundred twenty-three billion, seven hundred thirty million, two hundred six thousand, five hundred sixty-three".