11688000521 has 2 divisors, whose sum is σ = 11688000522. Its totient is φ = 11688000520.

The previous prime is 11688000517. The next prime is 11688000553. The reversal of 11688000521 is 12500088611.

It is an a-pointer prime, because the next prime (11688000553) can be obtained adding 11688000521 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9820810000 + 1867190521 = 99100^2 + 43211^2 .

It is an emirp because it is prime and its reverse (12500088611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11688000521 - 2² = 11688000517 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11688000721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5844000260 + 5844000261.

It is an arithmetic number, because the mean of its divisors is an integer number (5844000261).

Almost surely, 2^11688000521 is an apocalyptic number.

It is an amenable number.

11688000521 is a deficient number, since it is larger than the sum of its proper divisors (1).

11688000521 is an equidigital number, since it uses as much as digits as its factorization.

11688000521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 32.

The spelling of 11688000521 in words is "eleven billion, six hundred eighty-eight million, five hundred twenty-one", and thus it is an aban number.