111103311173 has 2 divisors, whose sum is σ = 111103311174. Its totient is φ = 111103311172.

The previous prime is 111103311161. The next prime is 111103311251. The reversal of 111103311173 is 371113301111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110036831524 + 1066479649 = 331718^2 + 32657^2 .

It is a cyclic number.

It is not a de Polignac number, because 111103311173 - 2⁴ = 111103311157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111103311373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55551655586 + 55551655587.

It is an arithmetic number, because the mean of its divisors is an integer number (55551655587).

Almost surely, 2^111103311173 is an apocalyptic number.

It is an amenable number.

111103311173 is a deficient number, since it is larger than the sum of its proper divisors (1).

111103311173 is an equidigital number, since it uses as much as digits as its factorization.

111103311173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 189, while the sum is 23.

Adding to 111103311173 its reverse (371113301111), we get a palindrome (482216612284).

The spelling of 111103311173 in words is "one hundred eleven billion, one hundred three million, three hundred eleven thousand, one hundred seventy-three".