1311022242243 has 48 divisors (see below), whose sum is σ = 2187062631936. Its totient is φ = 741254699520.

The previous prime is 1311022242241. The next prime is 1311022242253. The reversal of 1311022242243 is 3422422201131.

1311022242243 is a `hidden beast` number, since 1 + 3 + 1 + 10 + 222 + 422 + 4 + 3 = 666.

It is not a de Polignac number, because 1311022242243 - 2¹ = 1311022242241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311022242241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27983308 + ... + 28030118.

It is an arithmetic number, because the mean of its divisors is an integer number (45563804832).

Almost surely, 2^{1311022242243} is an apocalyptic number.

1311022242243 is a deficient number, since it is larger than the sum of its proper divisors (876040389693).

1311022242243 is a wasteful number, since it uses less digits than its factorization.

1311022242243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51504 (or 51501 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1311022242243 its reverse (3422422201131), we get a palindrome (4733444443374).

The spelling of 1311022242243 in words is "one trillion, three hundred eleven billion, twenty-two million, two hundred forty-two thousand, two hundred forty-three".