121347 has 12 divisors (see below), whose sum is σ = 178360. Its totient is φ = 79488.

The previous prime is 121343. The next prime is 121349. The reversal of 121347 is 743121.

It is not a de Polignac number, because 121347 - 2² = 121343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121343) 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, 804 + ... + 942.

2¹²¹³⁴⁷ is an apocalyptic number.

121347 is a deficient number, since it is larger than the sum of its proper divisors (57013).

121347 is a wasteful number, since it uses less digits than its factorization.

121347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 239 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 121347 is about 348.3489629667. The cubic root of 121347 is about 49.5081100884.

Adding to 121347 its reverse (743121), we get a palindrome (864468).

The spelling of 121347 in words is "one hundred twenty-one thousand, three hundred forty-seven", and thus it is an iban number.