21624232343 has 8 divisors (see below), whose sum is σ = 24749918112. Its totient is φ = 18507674016.

The previous prime is 21624232321. The next prime is 21624232351. The reversal of 21624232343 is 34323242612.

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 21624232343 - 2¹⁶ = 21624166807 is a prime.

It is a super-3 number, since 3×21624232343³ (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 (21624252343) 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, 2276780 + ... + 2286257.

It is an arithmetic number, because the mean of its divisors is an integer number (3093739764).

Almost surely, 2^21624232343 is an apocalyptic number.

21624232343 is a deficient number, since it is larger than the sum of its proper divisors (3125685769).

21624232343 is an equidigital number, since it uses as much as digits as its factorization.

21624232343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4563721.

The product of its digits is 41472, while the sum is 32.

Adding to 21624232343 its reverse (34323242612), we get a palindrome (55947474955).

The spelling of 21624232343 in words is "twenty-one billion, six hundred twenty-four million, two hundred thirty-two thousand, three hundred forty-three".