1311033243111 has 16 divisors (see below), whose sum is σ = 1751217965280. Its totient is φ = 872436039680.

The previous prime is 1311033243049. The next prime is 1311033243131. The reversal of 1311033243111 is 1113423301131.

It is a cyclic number.

It is not a de Polignac number, because 1311033243111 - 2¹⁰ = 1311033242087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311033243131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7632055 + ... + 7801943.

It is an arithmetic number, because the mean of its divisors is an integer number (109451122830).

Almost surely, 2^{1311033243111} is an apocalyptic number.

1311033243111 is a deficient number, since it is larger than the sum of its proper divisors (440184722169).

1311033243111 is a wasteful number, since it uses less digits than its factorization.

1311033243111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174546.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 1311033243111 its reverse (1113423301131), we get a palindrome (2424456544242).

The spelling of 1311033243111 in words is "one trillion, three hundred eleven billion, thirty-three million, two hundred forty-three thousand, one hundred eleven".