1311013121193 has 12 divisors (see below), whose sum is σ = 1893714262128. Its totient is φ = 873995527800.

The previous prime is 1311013121189. The next prime is 1311013121207. The reversal of 1311013121193 is 3911213101131.

1311013121193 is a `hidden beast` number, since 1 + 311 + 0 + 131 + 211 + 9 + 3 = 666.

It is not a de Polignac number, because 1311013121193 - 2² = 1311013121189 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311013131193) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 453483 + ... + 1681568.

It is an arithmetic number, because the mean of its divisors is an integer number (157809521844).

Almost surely, 2^{1311013121193} is an apocalyptic number.

It is an amenable number.

1311013121193 is a deficient number, since it is larger than the sum of its proper divisors (582701140935).

1311013121193 is a wasteful number, since it uses less digits than its factorization.

1311013121193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203284 (or 2203281 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The spelling of 1311013121193 in words is "one trillion, three hundred eleven billion, thirteen million, one hundred twenty-one thousand, one hundred ninety-three".