11315344512 has 64 divisors (see below), whose sum is σ = 31638319200. Its totient is φ = 3573264384.

The previous prime is 11315344501. The next prime is 11315344529. The reversal of 11315344512 is 21544351311.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 11315344512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 768153 + ... + 782744.

Almost surely, 2^11315344512 is an apocalyptic number.

11315344512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11315344512 is an abundant number, since it is smaller than the sum of its proper divisors (20322974688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11315344512 is a wasteful number, since it uses less digits than its factorization.

11315344512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550933 (or 1550921 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

Adding to 11315344512 its reverse (21544351311), we get a palindrome (32859695823).

The spelling of 11315344512 in words is "eleven billion, three hundred fifteen million, three hundred forty-four thousand, five hundred twelve".