171123223 has 2 divisors, whose sum is σ = 171123224. Its totient is φ = 171123222.

The previous prime is 171123209. The next prime is 171123233. The reversal of 171123223 is 322321171.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 171123223 - 2¹³ = 171115031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 171123194 and 171123203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171123233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85561611 + 85561612.

It is an arithmetic number, because the mean of its divisors is an integer number (85561612).

Almost surely, 2^171123223 is an apocalyptic number.

171123223 is a deficient number, since it is larger than the sum of its proper divisors (1).

171123223 is an equidigital number, since it uses as much as digits as its factorization.

171123223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 22.

The square root of 171123223 is about 13081.4075313018. The cubic root of 171123223 is about 555.1832017008.

Adding to 171123223 its reverse (322321171), we get a palindrome (493444394).

The spelling of 171123223 in words is "one hundred seventy-one million, one hundred twenty-three thousand, two hundred twenty-three".