121244443143 has 8 divisors (see below), whose sum is σ = 167233714800. Its totient is φ = 78042400128.

The previous prime is 121244443129. The next prime is 121244443157. The reversal of 121244443143 is 341344442121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121244443129) and next prime (121244443157).

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

It is not a de Polignac number, because 121244443143 - 2⁶ = 121244443079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121244443163) 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, 696807058 + ... + 696807231.

It is an arithmetic number, because the mean of its divisors is an integer number (20904214350).

Almost surely, 2^121244443143 is an apocalyptic number.

121244443143 is a deficient number, since it is larger than the sum of its proper divisors (45989271657).

121244443143 is a wasteful number, since it uses less digits than its factorization.

121244443143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393614321.

The product of its digits is 36864, while the sum is 33.

Adding to 121244443143 its reverse (341344442121), we get a palindrome (462588885264).

The spelling of 121244443143 in words is "one hundred twenty-one billion, two hundred forty-four million, four hundred forty-three thousand, one hundred forty-three".