21230341 has 8 divisors (see below), whose sum is σ = 23786784. Its totient is φ = 18778320.

The previous prime is 21230329. The next prime is 21230359. The reversal of 21230341 is 14303212.

It is a happy number.

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

It is not a de Polignac number, because 21230341 - 2⁵ = 21230309 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21230141) 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, 25675 + ... + 26488.

It is an arithmetic number, because the mean of its divisors is an integer number (2973348).

Almost surely, 2^21230341 is an apocalyptic number.

It is an amenable number.

21230341 is a deficient number, since it is larger than the sum of its proper divisors (2556443).

21230341 is a wasteful number, since it uses less digits than its factorization.

21230341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52211.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 21230341 is about 4607.6394173156. The cubic root of 21230341 is about 276.8974714711.

Adding to 21230341 its reverse (14303212), we get a palindrome (35533553).

The spelling of 21230341 in words is "twenty-one million, two hundred thirty thousand, three hundred forty-one".