118171223 has 2 divisors, whose sum is σ = 118171224. Its totient is φ = 118171222.

The previous prime is 118171211. The next prime is 118171237. The reversal of 118171223 is 322171811.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118171223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 118171192 and 118171201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118171243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59085611 + 59085612.

It is an arithmetic number, because the mean of its divisors is an integer number (59085612).

Almost surely, 2^118171223 is an apocalyptic number.

118171223 is a deficient number, since it is larger than the sum of its proper divisors (1).

118171223 is an equidigital number, since it uses as much as digits as its factorization.

118171223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672, while the sum is 26.

The square root of 118171223 is about 10870.6588116820. The cubic root of 118171223 is about 490.7239375466.

The spelling of 118171223 in words is "one hundred eighteen million, one hundred seventy-one thousand, two hundred twenty-three".