21230100343 has 8 divisors (see below), whose sum is σ = 22571133408. Its totient is φ = 19923899424.

The previous prime is 21230100301. The next prime is 21230100373. The reversal of 21230100343 is 34300103212.

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 21230100343 - 2¹³ = 21230092151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21230100343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21230100373) 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, 8706780 + ... + 8709217.

It is an arithmetic number, because the mean of its divisors is an integer number (2821391676).

Almost surely, 2^21230100343 is an apocalyptic number.

21230100343 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21230100343 is a deficient number, since it is larger than the sum of its proper divisors (1341033065).

21230100343 is a wasteful number, since it uses less digits than its factorization.

21230100343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17416073.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21230100343 its reverse (34300103212), we get a palindrome (55530203555).

The spelling of 21230100343 in words is "twenty-one billion, two hundred thirty million, one hundred thousand, three hundred forty-three".