21043141143 has 16 divisors (see below), whose sum is σ = 28439268480. Its totient is φ = 13838407904.

The previous prime is 21043141121. The next prime is 21043141159. The reversal of 21043141143 is 34114134012.

It is a cyclic number.

It is not a de Polignac number, because 21043141143 - 2¹⁰ = 21043140119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21043141643) by changing a digit.

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, 97888 + ... + 227306.

It is an arithmetic number, because the mean of its divisors is an integer number (1777454280).

Almost surely, 2^21043141143 is an apocalyptic number.

21043141143 is a deficient number, since it is larger than the sum of its proper divisors (7396127337).

21043141143 is a wasteful number, since it uses less digits than its factorization.

21043141143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130158.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 21043141143 its reverse (34114134012), we get a palindrome (55157275155).

The spelling of 21043141143 in words is "twenty-one billion, forty-three million, one hundred forty-one thousand, one hundred forty-three".