121173 has 12 divisors (see below), whose sum is σ = 175680. Its totient is φ = 74256.

The previous prime is 121171. The next prime is 121181. The reversal of 121173 is 371121.

It is not a de Polignac number, because 121173 - 2¹ = 121171 is a prime.

121173 is a lucky number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 388 + ... + 626.

It is an arithmetic number, because the mean of its divisors is an integer number (14640).

2¹²¹¹⁷³ is an apocalyptic number.

121173 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121173 is a deficient number, since it is larger than the sum of its proper divisors (54507).

121173 is a wasteful number, since it uses less digits than its factorization.

121173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 255 counting only the distinct ones).

The product of its digits is 42, while the sum is 15.

The square root of 121173 is about 348.0991238139. The cubic root of 121173 is about 49.4844354697.

Adding to 121173 its reverse (371121), we get a palindrome (492294).

The spelling of 121173 in words is "one hundred twenty-one thousand, one hundred seventy-three", and thus it is an iban number.