121443141243 has 8 divisors (see below), whose sum is σ = 162332059408. Its totient is φ = 80758158624.

The previous prime is 121443141241. The next prime is 121443141277. The reversal of 121443141243 is 342141344121.

It is a happy number.

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

It is not a de Polignac number, because 121443141243 - 2¹ = 121443141241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121443141243.

It is not an unprimeable number, because it can be changed into a prime (121443141241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50982496 + ... + 50984877.

It is an arithmetic number, because the mean of its divisors is an integer number (20291507426).

Almost surely, 2^121443141243 is an apocalyptic number.

121443141243 is a deficient number, since it is larger than the sum of its proper divisors (40888918165).

121443141243 is a wasteful number, since it uses less digits than its factorization.

121443141243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101967773.

The product of its digits is 9216, while the sum is 30.

Adding to 121443141243 its reverse (342141344121), we get a palindrome (463584485364).

The spelling of 121443141243 in words is "one hundred twenty-one billion, four hundred forty-three million, one hundred forty-one thousand, two hundred forty-three".