21233104343 has 8 divisors (see below), whose sum is σ = 23171141136. Its totient is φ = 19296360000.

The previous prime is 21233104337. The next prime is 21233104391. The reversal of 21233104343 is 34340133212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21233104343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21233104043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288596 + ... + 354617.

It is an arithmetic number, because the mean of its divisors is an integer number (2896392642).

Almost surely, 2^21233104343 is an apocalyptic number.

21233104343 is a deficient number, since it is larger than the sum of its proper divisors (1938036793).

21233104343 is a wasteful number, since it uses less digits than its factorization.

21233104343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646225.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 21233104343 its reverse (34340133212), we get a palindrome (55573237555).

The spelling of 21233104343 in words is "twenty-one billion, two hundred thirty-three million, one hundred four thousand, three hundred forty-three".