1131311102197 has 2 divisors, whose sum is σ = 1131311102198. Its totient is φ = 1131311102196.

The previous prime is 1131311102183. The next prime is 1131311102237. The reversal of 1131311102197 is 7912011131311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 778654467396 + 352656634801 = 882414^2 + 593849^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131311102197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131311172197) 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, 565655551098 + 565655551099.

It is an arithmetic number, because the mean of its divisors is an integer number (565655551099).

Almost surely, 2^{1131311102197} is an apocalyptic number.

It is an amenable number.

1131311102197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131311102197 is an equidigital number, since it uses as much as digits as its factorization.

1131311102197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 31.

The spelling of 1131311102197 in words is "one trillion, one hundred thirty-one billion, three hundred eleven million, one hundred two thousand, one hundred ninety-seven".