1131031311043 has 2 divisors, whose sum is σ = 1131031311044. Its totient is φ = 1131031311042.

The previous prime is 1131031310999. The next prime is 1131031311049. The reversal of 1131031311043 is 3401131301311.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131031311043 is a prime.

It is not a weakly prime, because it can be changed into another prime (1131031311049) 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 as a sum of consecutive naturals, namely, 565515655521 + 565515655522.

It is an arithmetic number, because the mean of its divisors is an integer number (565515655522).

Almost surely, 2^{1131031311043} is an apocalyptic number.

1131031311043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131031311043 is an equidigital number, since it uses as much as digits as its factorization.

1131031311043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1131031311043 its reverse (3401131301311), we get a palindrome (4532162612354).

The spelling of 1131031311043 in words is "one trillion, one hundred thirty-one billion, thirty-one million, three hundred eleven thousand, forty-three".