11512806311522 has 8 divisors (see below), whose sum is σ = 17269788419436. Its totient is φ = 5756210171712.

The previous prime is 11512806311449. The next prime is 11512806311551. The reversal of 11512806311522 is 22511360821511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11450041531681 + 62764779841 = 3383791^2 + 250529^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96417443 + ... + 96536774.

Almost surely, 2^{11512806311522} is an apocalyptic number.

11512806311522 is a deficient number, since it is larger than the sum of its proper divisors (5756982107914).

11512806311522 is a wasteful number, since it uses less digits than its factorization.

11512806311522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192984052.

The product of its (nonzero) digits is 28800, while the sum is 38.

The spelling of 11512806311522 in words is "eleven trillion, five hundred twelve billion, eight hundred six million, three hundred eleven thousand, five hundred twenty-two".