21341103 has 16 divisors (see below), whose sum is σ = 34433280. Its totient is φ = 11477376.

The previous prime is 21341093. The next prime is 21341141. The reversal of 21341103 is 30114312.

It is not a de Polignac number, because 21341103 - 2¹⁶ = 21275567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21341183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29533 + ... + 30246.

It is an arithmetic number, because the mean of its divisors is an integer number (2152080).

Almost surely, 2^21341103 is an apocalyptic number.

21341103 is a deficient number, since it is larger than the sum of its proper divisors (13092177).

21341103 is a wasteful number, since it uses less digits than its factorization.

21341103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59806.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 21341103 is about 4619.6431680380. The cubic root of 21341103 is about 277.3781755659.

Adding to 21341103 its reverse (30114312), we get a palindrome (51455415).

The spelling of 21341103 in words is "twenty-one million, three hundred forty-one thousand, one hundred three".