1134231111991 has 2 divisors, whose sum is σ = 1134231111992. Its totient is φ = 1134231111990.

The previous prime is 1134231111977. The next prime is 1134231112013. The reversal of 1134231111991 is 1991111324311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1134231111991 - 2⁷ = 1134231111863 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1134231111991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1134231111791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567115555995 + 567115555996.

It is an arithmetic number, because the mean of its divisors is an integer number (567115555996).

Almost surely, 2^{1134231111991} is an apocalyptic number.

1134231111991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1134231111991 is an equidigital number, since it uses as much as digits as its factorization.

1134231111991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 37.

The spelling of 1134231111991 in words is "one trillion, one hundred thirty-four billion, two hundred thirty-one million, one hundred eleven thousand, nine hundred ninety-one".