121143 has 8 divisors (see below), whose sum is σ = 176256. Its totient is φ = 73400.

The previous prime is 121139. The next prime is 121151. The reversal of 121143 is 341121.

It is a happy number.

121143 is nontrivially palindromic in base 2.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121143 - 2² = 121139 is a prime.

It is a super-3 number, since 3×121143³ = 5333548244733621, which contains 333 as substring.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1803 + ... + 1868.

It is an arithmetic number, because the mean of its divisors is an integer number (22032).

2¹²¹¹⁴³ is an apocalyptic number.

121143 is a deficient number, since it is larger than the sum of its proper divisors (55113).

121143 is a wasteful number, since it uses less digits than its factorization.

121143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3685.

The product of its digits is 24, while the sum is 12.

The square root of 121143 is about 348.0560299722. The cubic root of 121143 is about 49.4803513487.

Adding to 121143 its reverse (341121), we get a palindrome (462264).

The spelling of 121143 in words is "one hundred twenty-one thousand, one hundred forty-three", and thus it is an iban number.