21343141143 has 8 divisors (see below), whose sum is σ = 31619468400. Its totient is φ = 14228760744.

The previous prime is 21343141139. The next prime is 21343141177. The reversal of 21343141143 is 34114134312.

21343141143 is a `hidden beast` number, since 213 + 4 + 31 + 411 + 4 + 3 = 666.

It is not a de Polignac number, because 21343141143 - 2² = 21343141139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 790486709 = 21343141143 / (2 + 1 + 3 + 4 + 3 + 1 + 4 + 1 + 1 + 4 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21343141103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395243328 + ... + 395243381.

It is an arithmetic number, because the mean of its divisors is an integer number (3952433550).

Almost surely, 2^21343141143 is an apocalyptic number.

21343141143 is a deficient number, since it is larger than the sum of its proper divisors (10276327257).

21343141143 is an equidigital number, since it uses as much as digits as its factorization.

21343141143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790486718 (or 790486712 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 21343141143 its reverse (34114134312), we get a palindrome (55457275455).

The spelling of 21343141143 in words is "twenty-one billion, three hundred forty-three million, one hundred forty-one thousand, one hundred forty-three".