211131119491 has 2 divisors, whose sum is σ = 211131119492. Its totient is φ = 211131119490.

The previous prime is 211131119467. The next prime is 211131119497. The reversal of 211131119491 is 194911131112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211131119491 - 2¹¹ = 211131117443 is a prime.

It is not a weakly prime, because it can be changed into another prime (211131119497) 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, 105565559745 + 105565559746.

It is an arithmetic number, because the mean of its divisors is an integer number (105565559746).

Almost surely, 2^211131119491 is an apocalyptic number.

211131119491 is a deficient number, since it is larger than the sum of its proper divisors (1).

211131119491 is an equidigital number, since it uses as much as digits as its factorization.

211131119491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 34.

The spelling of 211131119491 in words is "two hundred eleven billion, one hundred thirty-one million, one hundred nineteen thousand, four hundred ninety-one".