1131111310313 has 32 divisors (see below), whose sum is σ = 1236391833600. Its totient is φ = 1030835160000.

The previous prime is 1131111310297. The next prime is 1131111310337. The reversal of 1131111310313 is 3130131111311.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1131111310313 - 2⁴ = 1131111310297 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1131111310363) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77312483 + ... + 77327111.

It is an arithmetic number, because the mean of its divisors is an integer number (38637244800).

Almost surely, 2^{1131111310313} is an apocalyptic number.

It is an amenable number.

1131111310313 is a deficient number, since it is larger than the sum of its proper divisors (105280523287).

1131111310313 is a wasteful number, since it uses less digits than its factorization.

1131111310313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15453.

The product of its (nonzero) digits is 81, while the sum is 20.

Adding to 1131111310313 its reverse (3130131111311), we get a palindrome (4261242421624).

The spelling of 1131111310313 in words is "one trillion, one hundred thirty-one billion, one hundred eleven million, three hundred ten thousand, three hundred thirteen".