21102341 has 8 divisors (see below), whose sum is σ = 22790880. Its totient is φ = 19423152.

The previous prime is 21102313. The next prime is 21102377. The reversal of 21102341 is 14320112.

21102341 is nontrivially palindromic in base 2.

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 21102341 - 2¹⁰ = 21101317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21102311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2786 + ... + 7068.

It is an arithmetic number, because the mean of its divisors is an integer number (2848860).

Almost surely, 2^21102341 is an apocalyptic number.

It is an amenable number.

21102341 is a deficient number, since it is larger than the sum of its proper divisors (1688539).

21102341 is a wasteful number, since it uses less digits than its factorization.

21102341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4675.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 21102341 is about 4593.7284421263. The cubic root of 21102341 is about 276.3398678426.

Adding to 21102341 its reverse (14320112), we get a palindrome (35422453).

The spelling of 21102341 in words is "twenty-one million, one hundred two thousand, three hundred forty-one".