21230442010143 has 12 divisors (see below), whose sum is σ = 30770856796680. Its totient is φ = 14105322107376.

The previous prime is 21230442010109. The next prime is 21230442010247. The reversal of 21230442010143 is 34101024403212.

21230442010143 is a `hidden beast` number, since 2 + 1 + 230 + 4 + 420 + 1 + 0 + 1 + 4 + 3 = 666.

It is not a de Polignac number, because 21230442010143 - 2⁹ = 21230442009631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21230442010343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4025488833 + ... + 4025494106.

It is an arithmetic number, because the mean of its divisors is an integer number (2564238066390).

Almost surely, 2^{21230442010143} is an apocalyptic number.

21230442010143 is a deficient number, since it is larger than the sum of its proper divisors (9540414786537).

21230442010143 is a wasteful number, since it uses less digits than its factorization.

21230442010143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8050983238 (or 8050983235 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 21230442010143 its reverse (34101024403212), we get a palindrome (55331466413355).

The spelling of 21230442010143 in words is "twenty-one trillion, two hundred thirty billion, four hundred forty-two million, ten thousand, one hundred forty-three".