1111000312171 has 2 divisors, whose sum is σ = 1111000312172. Its totient is φ = 1111000312170.

The previous prime is 1111000312159. The next prime is 1111000312187. The reversal of 1111000312171 is 1712130001111.

It is a weak prime.

It is an emirp because it is prime and its reverse (1712130001111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1111000312171 - 2⁷ = 1111000312043 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111000316171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555500156085 + 555500156086.

It is an arithmetic number, because the mean of its divisors is an integer number (555500156086).

Almost surely, 2^{1111000312171} is an apocalyptic number.

1111000312171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111000312171 is an equidigital number, since it uses as much as digits as its factorization.

1111000312171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42, while the sum is 19.

Adding to 1111000312171 its reverse (1712130001111), we get a palindrome (2823130313282).

The spelling of 1111000312171 in words is "one trillion, one hundred eleven billion, three hundred twelve thousand, one hundred seventy-one".