1311334142011 has 4 divisors (see below), whose sum is σ = 1324065541552. Its totient is φ = 1298602742472.

The previous prime is 1311334141993. The next prime is 1311334142029. The reversal of 1311334142011 is 1102414331131.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1311334141993) and next prime (1311334142029).

It is a cyclic number.

It is not a de Polignac number, because 1311334142011 - 2³⁵ = 1276974403643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311334142051) 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, 6365699616 + ... + 6365699821.

It is an arithmetic number, because the mean of its divisors is an integer number (331016385388).

Almost surely, 2^{1311334142011} is an apocalyptic number.

1311334142011 is a deficient number, since it is larger than the sum of its proper divisors (12731399541).

1311334142011 is a wasteful number, since it uses less digits than its factorization.

1311334142011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12731399540.

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

Adding to 1311334142011 its reverse (1102414331131), we get a palindrome (2413748473142).

The spelling of 1311334142011 in words is "one trillion, three hundred eleven billion, three hundred thirty-four million, one hundred forty-two thousand, eleven".