21241113 has 8 divisors (see below), whose sum is σ = 28485888. Its totient is φ = 14078544.

The previous prime is 21241093. The next prime is 21241123. The reversal of 21241113 is 31114212.

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

It is not a de Polignac number, because 21241113 - 2⁵ = 21241081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21241092 and 21241101.

It is not an unprimeable number, because it can be changed into a prime (21241123) 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, 19945 + ... + 20982.

It is an arithmetic number, because the mean of its divisors is an integer number (3560736).

Almost surely, 2^21241113 is an apocalyptic number.

It is an amenable number.

21241113 is a deficient number, since it is larger than the sum of its proper divisors (7244775).

21241113 is a wasteful number, since it uses less digits than its factorization.

21241113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41103.

The product of its digits is 48, while the sum is 15.

The square root of 21241113 is about 4608.8081973543. The cubic root of 21241113 is about 276.9442949495.

Adding to 21241113 its reverse (31114212), we get a palindrome (52355325).

The spelling of 21241113 in words is "twenty-one million, two hundred forty-one thousand, one hundred thirteen".