21333214143 has 12 divisors (see below), whose sum is σ = 30864432040. Its totient is φ = 14199163056.

The previous prime is 21333214129. The next prime is 21333214151. The reversal of 21333214143 is 34141233312.

It is a happy number.

21333214143 is a `hidden beast` number, since 213 + 3 + 32 + 1 + 414 + 3 = 666.

It is not a de Polignac number, because 21333214143 - 2⁹ = 21333213631 is a prime.

It is a super-3 number, since 3×21333214143³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21333214103) 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, 1909096 + ... + 1920237.

Almost surely, 2^21333214143 is an apocalyptic number.

21333214143 is a deficient number, since it is larger than the sum of its proper divisors (9531217897).

21333214143 is a wasteful number, since it uses less digits than its factorization.

21333214143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3829958 (or 3829955 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 21333214143 its reverse (34141233312), we get a palindrome (55474447455).

It can be divided in two parts, 213332 and 14143, that added together give a triangular number (227475 = T₆₇₄).

The spelling of 21333214143 in words is "twenty-one billion, three hundred thirty-three million, two hundred fourteen thousand, one hundred forty-three".