1311202102113 has 20 divisors (see below), whose sum is σ = 1968552097600. Its totient is φ = 869742087192.

The previous prime is 1311202102109. The next prime is 1311202102141. The reversal of 1311202102113 is 3112012021131.

It is not a de Polignac number, because 1311202102113 - 2² = 1311202102109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1311202102103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 40656445 + ... + 40688682.

It is an arithmetic number, because the mean of its divisors is an integer number (98427604880).

Almost surely, 2^{1311202102113} is an apocalyptic number.

It is an amenable number.

1311202102113 is a deficient number, since it is larger than the sum of its proper divisors (657349995487).

1311202102113 is an equidigital number, since it uses as much as digits as its factorization.

1311202102113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81345338 (or 81345329 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1311202102113 its reverse (3112012021131), we get a palindrome (4423214123244).

The spelling of 1311202102113 in words is "one trillion, three hundred eleven billion, two hundred two million, one hundred two thousand, one hundred thirteen".