21343441133 has 8 divisors (see below), whose sum is σ = 25676320320. Its totient is φ = 17331516000.

The previous prime is 21343441121. The next prime is 21343441153. The reversal of 21343441133 is 33114434312.

It is a happy number.

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 21343441133 - 2²² = 21339246829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21343441096 and 21343441105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21343441153) 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, 80238368 + ... + 80238633.

It is an arithmetic number, because the mean of its divisors is an integer number (3209540040).

Almost surely, 2^21343441133 is an apocalyptic number.

It is an amenable number.

21343441133 is a deficient number, since it is larger than the sum of its proper divisors (4332879187).

21343441133 is a wasteful number, since it uses less digits than its factorization.

21343441133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160477027.

The product of its digits is 10368, while the sum is 29.

Adding to 21343441133 its reverse (33114434312), we get a palindrome (54457875445).

The spelling of 21343441133 in words is "twenty-one billion, three hundred forty-three million, four hundred forty-one thousand, one hundred thirty-three".