121443141432 has 64 divisors (see below), whose sum is σ = 318309960960. Its totient is φ = 38537452800.

The previous prime is 121443141403. The next prime is 121443141473. The reversal of 121443141432 is 234141344121.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 121443141432.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 404869 + ... + 637812.

It is an arithmetic number, because the mean of its divisors is an integer number (4973593140).

Almost surely, 2^121443141432 is an apocalyptic number.

121443141432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121443141432 is an abundant number, since it is smaller than the sum of its proper divisors (196866819528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121443141432 is a wasteful number, since it uses less digits than its factorization.

121443141432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042924 (or 1042920 counting only the distinct ones).

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

Adding to 121443141432 its reverse (234141344121), we get a palindrome (355584485553).

The spelling of 121443141432 in words is "one hundred twenty-one billion, four hundred forty-three million, one hundred forty-one thousand, four hundred thirty-two".