21343553411 has 8 divisors (see below), whose sum is σ = 21586140048. Its totient is φ = 21101580000.

The previous prime is 21343553381. The next prime is 21343553417. The reversal of 21343553411 is 11435534312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21343553411 - 2¹⁰ = 21343552387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21343553417) 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 7 ways as a sum of consecutive naturals, for example, 83120 + ... + 222701.

It is an arithmetic number, because the mean of its divisors is an integer number (2698267506).

Almost surely, 2^21343553411 is an apocalyptic number.

21343553411 is a deficient number, since it is larger than the sum of its proper divisors (242586637).

21343553411 is a wasteful number, since it uses less digits than its factorization.

21343553411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306613.

The product of its digits is 21600, while the sum is 32.

The spelling of 21343553411 in words is "twenty-one billion, three hundred forty-three million, five hundred fifty-three thousand, four hundred eleven".