11567213123 has 2 divisors, whose sum is σ = 11567213124. Its totient is φ = 11567213122.

The previous prime is 11567213033. The next prime is 11567213149. The reversal of 11567213123 is 32131276511.

11567213123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11567213123 - 2³⁰ = 10493471299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11567213123.

It is not a weakly prime, because it can be changed into another prime (11567213173) 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, 5783606561 + 5783606562.

It is an arithmetic number, because the mean of its divisors is an integer number (5783606562).

Almost surely, 2^11567213123 is an apocalyptic number.

11567213123 is a deficient number, since it is larger than the sum of its proper divisors (1).

11567213123 is an equidigital number, since it uses as much as digits as its factorization.

11567213123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 32.

Adding to 11567213123 its reverse (32131276511), we get a palindrome (43698489634).

The spelling of 11567213123 in words is "eleven billion, five hundred sixty-seven million, two hundred thirteen thousand, one hundred twenty-three".