111233213171 has 2 divisors, whose sum is σ = 111233213172. Its totient is φ = 111233213170.

The previous prime is 111233213149. The next prime is 111233213197. The reversal of 111233213171 is 171312332111.

It is an a-pointer prime, because the next prime (111233213197) can be obtained adding 111233213171 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111233213171 - 2¹⁴ = 111233196787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111233213171.

It is not a weakly prime, because it can be changed into another prime (111233213471) 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, 55616606585 + 55616606586.

It is an arithmetic number, because the mean of its divisors is an integer number (55616606586).

Almost surely, 2^111233213171 is an apocalyptic number.

111233213171 is a deficient number, since it is larger than the sum of its proper divisors (1).

111233213171 is an equidigital number, since it uses as much as digits as its factorization.

111233213171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756, while the sum is 26.

Adding to 111233213171 its reverse (171312332111), we get a palindrome (282545545282).

The spelling of 111233213171 in words is "one hundred eleven billion, two hundred thirty-three million, two hundred thirteen thousand, one hundred seventy-one".