1131320230211 has 2 divisors, whose sum is σ = 1131320230212. Its totient is φ = 1131320230210.

The previous prime is 1131320230193. The next prime is 1131320230253. The reversal of 1131320230211 is 1120320231311.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1120320231311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1131320230211 - 2²² = 1131316035907 is a prime.

It is not a weakly prime, because it can be changed into another prime (1131320230111) 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, 565660115105 + 565660115106.

It is an arithmetic number, because the mean of its divisors is an integer number (565660115106).

Almost surely, 2^{1131320230211} is an apocalyptic number.

1131320230211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131320230211 is an equidigital number, since it uses as much as digits as its factorization.

1131320230211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1131320230211 its reverse (1120320231311), we get a palindrome (2251640461522).

The spelling of 1131320230211 in words is "one trillion, one hundred thirty-one billion, three hundred twenty million, two hundred thirty thousand, two hundred eleven".