1131111201113 has 2 divisors, whose sum is σ = 1131111201114. Its totient is φ = 1131111201112.

The previous prime is 1131111201097. The next prime is 1131111201127. The reversal of 1131111201113 is 3111021111311.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 984516403984 + 146594797129 = 992228^2 + 382877^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131111201113 - 2⁴ = 1131111201097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1131111201091 and 1131111201100.

It is not a weakly prime, because it can be changed into another prime (1131111201013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565555600556 + 565555600557.

It is an arithmetic number, because the mean of its divisors is an integer number (565555600557).

Almost surely, 2^{1131111201113} is an apocalyptic number.

It is an amenable number.

1131111201113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131111201113 is an equidigital number, since it uses as much as digits as its factorization.

1131111201113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 17.

Adding to 1131111201113 its reverse (3111021111311), we get a palindrome (4242132312424).

The spelling of 1131111201113 in words is "one trillion, one hundred thirty-one billion, one hundred eleven million, two hundred one thousand, one hundred thirteen".