121373 has 6 divisors (see below), whose sum is σ = 141246. Its totient is φ = 103992.

The previous prime is 121369. The next prime is 121379. The reversal of 121373 is 373121.

121373 is nontrivially palindromic in base 12.

It can be written as a sum of positive squares in only one way, i.e., 103684 + 17689 = 322^2 + 133^2 .

It is not a de Polignac number, because 121373 - 2² = 121369 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121379) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1190 + ... + 1287.

It is an arithmetic number, because the mean of its divisors is an integer number (23541).

2¹²¹³⁷³ is an apocalyptic number.

It is an amenable number.

121373 is a deficient number, since it is larger than the sum of its proper divisors (19873).

121373 is an equidigital number, since it uses as much as digits as its factorization.

121373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491 (or 2484 counting only the distinct ones).

The product of its digits is 126, while the sum is 17.

The square root of 121373 is about 348.3862798676. The cubic root of 121373 is about 49.5116457312.

Adding to 121373 its reverse (373121), we get a palindrome (494494).

It can be divided in two parts, 121 and 373, that added together give a palindrome (494).

The spelling of 121373 in words is "one hundred twenty-one thousand, three hundred seventy-three", and thus it is an iban number.