1311113445132 has 12 divisors (see below), whose sum is σ = 3059264705336. Its totient is φ = 437037815040.

The previous prime is 1311113445119. The next prime is 1311113445133. The reversal of 1311113445132 is 2315443111131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1311113445132.

It is not an unprimeable number, because it can be changed into a prime (1311113445133) 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, 54629726869 + ... + 54629726892.

Almost surely, 2^{1311113445132} is an apocalyptic number.

1311113445132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1311113445132 is an abundant number, since it is smaller than the sum of its proper divisors (1748151260204).

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

1311113445132 is a wasteful number, since it uses less digits than its factorization.

1311113445132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109259453768 (or 109259453766 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

Adding to 1311113445132 its reverse (2315443111131), we get a palindrome (3626556556263).

The spelling of 1311113445132 in words is "one trillion, three hundred eleven billion, one hundred thirteen million, four hundred forty-five thousand, one hundred thirty-two".