211119128469877 has 2 divisors, whose sum is σ = 211119128469878. Its totient is φ = 211119128469876.

The previous prime is 211119128469857. The next prime is 211119128469961. The reversal of 211119128469877 is 778964821911112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197794577090916 + 13324551378961 = 14063946^2 + 3650281^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211119128469877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211119128469857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105559564234938 + 105559564234939.

It is an arithmetic number, because the mean of its divisors is an integer number (105559564234939).

Almost surely, 2^{211119128469877} is an apocalyptic number.

It is an amenable number.

211119128469877 is a deficient number, since it is larger than the sum of its proper divisors (1).

211119128469877 is an equidigital number, since it uses as much as digits as its factorization.

211119128469877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24385536, while the sum is 67.

The spelling of 211119128469877 in words is "two hundred eleven trillion, one hundred nineteen billion, one hundred twenty-eight million, four hundred sixty-nine thousand, eight hundred seventy-seven".