21341341 has 24 divisors (see below), whose sum is σ = 26744256. Its totient is φ = 16623360.

The previous prime is 21341339. The next prime is 21341347. The reversal of 21341341 is 14314312.

It is not a de Polignac number, because 21341341 - 2¹ = 21341339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21341347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162846 + ... + 162976.

It is an arithmetic number, because the mean of its divisors is an integer number (1114344).

Almost surely, 2^21341341 is an apocalyptic number.

It is an amenable number.

21341341 is a deficient number, since it is larger than the sum of its proper divisors (5402915).

21341341 is a wasteful number, since it uses less digits than its factorization.

21341341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 192 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 21341341 is about 4619.6689275315. The cubic root of 21341341 is about 277.3792066866.

Adding to 21341341 its reverse (14314312), we get a palindrome (35655653).

The spelling of 21341341 in words is "twenty-one million, three hundred forty-one thousand, three hundred forty-one".