1311341134012 has 48 divisors (see below), whose sum is σ = 2825037978112. Its totient is φ = 518660107200.

The previous prime is 1311341134007. The next prime is 1311341134031. The reversal of 1311341134012 is 2104311431131.

It is a super-2 number, since 2×1311341134012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1305673 + ... + 2080255.

Almost surely, 2^{1311341134012} is an apocalyptic number.

It is an amenable number.

1311341134012 is an abundant number, since it is smaller than the sum of its proper divisors (1513696844100).

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

1311341134012 is a wasteful number, since it uses less digits than its factorization.

1311341134012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779258 (or 779256 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 1311341134012 its reverse (2104311431131), we get a palindrome (3415652565143).

The spelling of 1311341134012 in words is "one trillion, three hundred eleven billion, three hundred forty-one million, one hundred thirty-four thousand, twelve".