1311132212012 has 48 divisors (see below), whose sum is σ = 2776700243520. Its totient is φ = 528824819712.

The previous prime is 1311132211997. The next prime is 1311132212017. The reversal of 1311132212012 is 2102122311131.

It is not an unprimeable number, because it can be changed into a prime (1311132212017) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7767164 + ... + 7934172.

It is an arithmetic number, because the mean of its divisors is an integer number (57847921740).

Almost surely, 2^{1311132212012} is an apocalyptic number.

It is an amenable number.

1311132212012 is an abundant number, since it is smaller than the sum of its proper divisors (1465568031508).

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

1311132212012 is a wasteful number, since it uses less digits than its factorization.

1311132212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183530 (or 183528 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1311132212012 its reverse (2102122311131), we get a palindrome (3413254523143).

The spelling of 1311132212012 in words is "one trillion, three hundred eleven billion, one hundred thirty-two million, two hundred twelve thousand, twelve".