21043141144 has 64 divisors (see below), whose sum is σ = 42271035840. Its totient is φ = 9786040320.

The previous prime is 21043141121. The next prime is 21043141159. The reversal of 21043141144 is 44114134012.

It is a super-3 number, since 3×21043141144³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5730429 + ... + 5734099.

It is an arithmetic number, because the mean of its divisors is an integer number (660484935).

Almost surely, 2^21043141144 is an apocalyptic number.

It is an amenable number.

21043141144 is an abundant number, since it is smaller than the sum of its proper divisors (21227894696).

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

21043141144 is a wasteful number, since it uses less digits than its factorization.

21043141144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4180 (or 4176 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 21043141144 its reverse (44114134012), we get a palindrome (65157275156).

The spelling of 21043141144 in words is "twenty-one billion, forty-three million, one hundred forty-one thousand, one hundred forty-four".