121441143 has 8 divisors (see below), whose sum is σ = 162736000. Its totient is φ = 80553528.

The previous prime is 121441129. The next prime is 121441147. The reversal of 121441143 is 341144121.

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

It is not a de Polignac number, because 121441143 - 2¹³ = 121432951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121441147) 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, 101113 + ... + 102306.

It is an arithmetic number, because the mean of its divisors is an integer number (20342000).

Almost surely, 2^121441143 is an apocalyptic number.

121441143 is a deficient number, since it is larger than the sum of its proper divisors (41294857).

121441143 is a wasteful number, since it uses less digits than its factorization.

121441143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203621.

The product of its digits is 384, while the sum is 21.

The square root of 121441143 is about 11020.0337113822. The cubic root of 121441143 is about 495.2090984776.

Adding to 121441143 its reverse (341144121), we get a palindrome (462585264).

The spelling of 121441143 in words is "one hundred twenty-one million, four hundred forty-one thousand, one hundred forty-three".