11177431998211 has 2 divisors, whose sum is σ = 11177431998212. Its totient is φ = 11177431998210.

The previous prime is 11177431998191. The next prime is 11177431998253. The reversal of 11177431998211 is 11289913477111.

11177431998211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (11289913477111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11177431998211 - 2¹⁵ = 11177431965443 is a prime.

It is a super-2 number, since 2×11177431998211² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11177431998611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5588715999105 + 5588715999106.

It is an arithmetic number, because the mean of its divisors is an integer number (5588715999106).

Almost surely, 2^{11177431998211} is an apocalyptic number.

11177431998211 is a deficient number, since it is larger than the sum of its proper divisors (1).

11177431998211 is an equidigital number, since it uses as much as digits as its factorization.

11177431998211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 55.

The spelling of 11177431998211 in words is "eleven trillion, one hundred seventy-seven billion, four hundred thirty-one million, nine hundred ninety-eight thousand, two hundred eleven".