1311240333112 has 32 divisors (see below), whose sum is σ = 2492568536400. Its totient is φ = 646557652224.

The previous prime is 1311240333107. The next prime is 1311240333157. The reversal of 1311240333112 is 2113330421131.

It is a super-2 number, since 2×1311240333112² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4639278 + ... + 4913794.

Almost surely, 2^{1311240333112} is an apocalyptic number.

It is an amenable number.

1311240333112 is a deficient number, since it is larger than the sum of its proper divisors (1181328203288).

1311240333112 is a wasteful number, since it uses less digits than its factorization.

1311240333112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282775 (or 282771 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 1311240333112 its reverse (2113330421131), we get a palindrome (3424570754243).

The spelling of 1311240333112 in words is "one trillion, three hundred eleven billion, two hundred forty million, three hundred thirty-three thousand, one hundred twelve".