1113332031181 has 2 divisors, whose sum is σ = 1113332031182. Its totient is φ = 1113332031180.

The previous prime is 1113332031169. The next prime is 1113332031239. The reversal of 1113332031181 is 1811302333111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 787851512100 + 325480519081 = 887610^2 + 570509^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113332031181 - 2³³ = 1104742096589 is a prime.

It is a super-2 number, since 2×1113332031181² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113332031101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556666015590 + 556666015591.

It is an arithmetic number, because the mean of its divisors is an integer number (556666015591).

Almost surely, 2^{1113332031181} is an apocalyptic number.

It is an amenable number.

1113332031181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113332031181 is an equidigital number, since it uses as much as digits as its factorization.

1113332031181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

Adding to 1113332031181 its reverse (1811302333111), we get a palindrome (2924634364292).

The spelling of 1113332031181 in words is "one trillion, one hundred thirteen billion, three hundred thirty-two million, thirty-one thousand, one hundred eighty-one".