121044421143 has 16 divisors (see below), whose sum is σ = 179635880160. Its totient is φ = 80556415488.

The previous prime is 121044421129. The next prime is 121044421151. The reversal of 121044421143 is 341124440121.

121044421143 is a `hidden beast` number, since 1 + 2 + 1 + 0 + 444 + 211 + 4 + 3 = 666.

It is not a de Polignac number, because 121044421143 - 2⁵ = 121044421111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121044421123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3869280 + ... + 3900437.

It is an arithmetic number, because the mean of its divisors is an integer number (11227242510).

Almost surely, 2^121044421143 is an apocalyptic number.

121044421143 is a deficient number, since it is larger than the sum of its proper divisors (58591459017).

121044421143 is an equidigital number, since it uses as much as digits as its factorization.

121044421143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7770303 (or 7770297 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 121044421143 its reverse (341124440121), we get a palindrome (462168861264).

The spelling of 121044421143 in words is "one hundred twenty-one billion, forty-four million, four hundred twenty-one thousand, one hundred forty-three".