121143241 has 8 divisors (see below), whose sum is σ = 129089160. Its totient is φ = 113288448.

The previous prime is 121143227. The next prime is 121143247. The reversal of 121143241 is 142341121.

It can be written as a sum of positive squares in 4 ways, for example, as 33177600 + 87965641 = 5760^2 + 9379^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121143241 is a prime.

It is a super-3 number, since 3×121143241³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (121143247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20026 + ... + 25363.

It is an arithmetic number, because the mean of its divisors is an integer number (16136145).

Almost surely, 2^121143241 is an apocalyptic number.

It is an amenable number.

121143241 is a deficient number, since it is larger than the sum of its proper divisors (7945919).

121143241 is a wasteful number, since it uses less digits than its factorization.

121143241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45563.

The product of its digits is 192, while the sum is 19.

The square root of 121143241 is about 11006.5090287520. The cubic root of 121143241 is about 494.8038416047.

Adding to 121143241 its reverse (142341121), we get a palindrome (263484362).

The spelling of 121143241 in words is "one hundred twenty-one million, one hundred forty-three thousand, two hundred forty-one".