11121233312171 has 2 divisors, whose sum is σ = 11121233312172. Its totient is φ = 11121233312170.

The previous prime is 11121233312149. The next prime is 11121233312179. The reversal of 11121233312171 is 17121333212111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11121233312171 is a prime.

It is a super-2 number, since 2×11121233312171² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11121233312179) 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, 5560616656085 + 5560616656086.

It is an arithmetic number, because the mean of its divisors is an integer number (5560616656086).

Almost surely, 2^{11121233312171} is an apocalyptic number.

11121233312171 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121233312171 is an equidigital number, since it uses as much as digits as its factorization.

11121233312171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 29.

Adding to 11121233312171 its reverse (17121333212111), we get a palindrome (28242566524282).

The spelling of 11121233312171 in words is "eleven trillion, one hundred twenty-one billion, two hundred thirty-three million, three hundred twelve thousand, one hundred seventy-one".