21143413323 has 12 divisors (see below), whose sum is σ = 30552547480. Its totient is φ = 14090042016.

The previous prime is 21143413289. The next prime is 21143413391. The reversal of 21143413323 is 32331434112.

It is a happy number.

21143413323 is a `hidden beast` number, since 211 + 4 + 3 + 413 + 32 + 3 = 666.

It is not a de Polignac number, because 21143413323 - 2¹³ = 21143405131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21143413393) 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 11 ways as a sum of consecutive naturals, for example, 439786 + ... + 485487.

Almost surely, 2^21143413323 is an apocalyptic number.

21143413323 is a deficient number, since it is larger than the sum of its proper divisors (9409134157).

21143413323 is a wasteful number, since it uses less digits than its factorization.

21143413323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927818 (or 927815 counting only the distinct ones).

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

Adding to 21143413323 its reverse (32331434112), we get a palindrome (53474847435).

The spelling of 21143413323 in words is "twenty-one billion, one hundred forty-three million, four hundred thirteen thousand, three hundred twenty-three".